Skeptophilia (skep-to-fil-i-a) (n.) - the love of logical thought, skepticism, and thinking critically. Being an exploration of the applications of skeptical thinking to the world at large, with periodic excursions into linguistics, music, politics, cryptozoology, and why people keep seeing the face of Jesus on grilled cheese sandwiches.

Friday, March 31, 2017

Ignorance, anti-science, and corporate interests

I try not to ring the changes on the same topic too often, but sometimes I simply have no choice.

A few days ago, I described how my most-loathed member of the House of Representatives, Lamar Smith of Texas, had appeared before the members of the Heartland Institute and crowed about how the Trump administration's entire pro-fossil-fuel, anti-environmental, climate-change-denying agenda was about to be realized.  Well, two days ago Smith followed through on his plans to have a meeting with the committee he chairs -- the House Committee on Science, Space, and Technology -- to discuss climate change.

With only a single actual climate scientist in the room.

To be fair, the climate scientist they picked is a big name: Dr. Michael Mann of Pennsylvania State University, one of the first researchers to sound the alarm on the direction the global temperature was heading.  But the three other people on the panel with Mann were carefully chosen to be climate change deniers, and Mann was the only one who is a working research scientist.

The tone was set immediately in Smith's opening remarks.  "Much of climate science today appears to be based more on exaggeration, personal agendas, and questionable predictions than on the scientific method," Smith said, ignoring the fact that there is a 97% consensus amongst actual climate scientists about the causes and effects of climate change, and most of the remaining 3% argue only at the level of details.  "Alarmist predictions amount to nothing more than wild guesses."

This was music to the ears of most of the committee, which is overwhelmingly populated with anti-science types.  Dana Rohrabacher of California, who once called global warming "liberal claptrap," snarled at Mann, saying that he had committed a "personal attack on our committee chairman" for saying that Smith participated in a "climate science denying conference."

So we're now in a place where "truth" is called a "personal attack."  Since a "lie" is now an "alternative fact," I suppose that was the next logical step.

Other members took up time asking idiotic questions.  Mo Brooks of Alabama, having never heard of the Law of Conservation of Mass, asked the panel how they knew that sea levels were going to rise, not fall, when the ice caps melt.  Daniel Webster of Florida asked if we know what caused the "Ice Age" (evidently he thinks there was only one), because apparently if that can't be answered with certainty, there's no way to predict that we're not going to be in the middle of a glacier by next Thursday.

[image courtesy of the Wikimedia Commons]

Only a few people stood up and called the meeting for the bullshit it was.  Suzanne Bonamici of Oregon said, "The witness panel does not really represent the vast majority of climate scientists who have concluded that there is a connection between human activity and climate.  For a balanced panel, we need 96 more Dr. Manns."

But Lamar is on a roll this week.  He wasn't happy with just creating a farcical excuse for a fair hearing; he went after one of the world's most respected research journals, Science.  Since Science isn't promoting the Trump agenda, he claims that they're biased.  "That is not known as an objective writer or magazine," he said.  Because in his bizarro world, "objective" apparently means "agrees with Lamar."

The problem is, of course, people like Smith almost never bother actually to read what they're lambasting.  The point isn't honest critique, or even honest questioning; it's purely retributive, to punish the resistance of the scientific community to caving in under pressure from political and corporate interests.

If you're not discouraged enough yet, how about the news that the aforementioned Heartland Institute (which is totally not a "climate-science-denying organization," to even insinuate such a thing is a "personal attack") is sending a book called Why Scientists Disagree About Global Warming, with an accompanying DVD, to 200,000 science teachers, funded by the $7 million they were given last year by Exxon, Koch Industries, and various other fossil fuel corporations.

Nope.  No biased propaganda campaign there.

Last, let's consider Scott Wagner, a state senator from Pennsylvania, who went on record two days ago as saying okay, maybe the Earth was getting warmer, but it could be from one of two reasons: (1) the Earth getting closer to the Sun; or (2) all of these warm human bodies are hanging around heating up the place.  I wish I was making this up.  Here's the actual quote:
[T]he Earth moves closer to the sun every year — you know, the rotation of the Earth.  We're moving closer to the sun...  [Also] we have more people.  You know, humans have warm bodies.  So is heat coming off?
Afterwards, Wagner admitted that he hadn't "been in a science class for a long time."  No, really?  I'd never have guessed from the fact that you (1) don't know the difference between rotation and revolution, (2) think it takes a year for the Earth to rotate, (3) think we're spiraling inwards toward the Sun, and (4) believe that hot human bodies are causing the climate to change.

I'm beginning to think there should be a requirement that all candidates from public office be able to pass a basic science exam before their name can be put on the ballot.  There is simply too much at stake here.  We can't afford to have leaders who are ignorant of scientific facts, suspicious about the scientific process, and put short-term economic interests (including the immediate economic interest of padding their own pockets by pushing the agenda of their corporate sponsors) before the conclusions of evidence-based research.

Or, put more simply: can we all pinky-swear-promise not to vote next time for immoral, unethical twits and complete fucking morons?

Thursday, March 30, 2017

Imaginary cure-alls

If yesterday's post, about enhancing your diet by consuming rotten meat, was not enough, today we have:  buying expensive vitamins to combat a disease that doesn't, technically, exist.

It will probably come as no surprise to those of you who keep abreast of health news to find out that this is the brainchild of that renowned medical researcher, Gwyneth Paltrow.

And this is hardly Paltrow's first bizarre idea.  She was, you may recall, the person who recommended "vaginal steaming" for women to improve the health of their hoo-has.  This time, though, in partnership with one Dr. Alejandro Junger, she's peddling vitamin supplements to combat something she calls "adrenal fatigue:"
When Gwyneth Paltrow started showing signs of adrenal fatigue—feeling completely depleted of energy, with dark under-eye circles and brain fog—she turned to her trusted friend and physician, Alejandro Junger, MD. He knew exactly what her body needed because it was something he had experienced himself years ago. 
“Adrenal fatigue is a world epidemic that’s not tested by Western doctors until it’s so extreme that it requires hospitalization—but there’s a whole spectrum of intensity to get there, which is where most people fall,” Dr. Junger says. 
Since there was no established protocol for the condition, he developed one himself—and it came in handy years later, when Paltrow came to him for advice. “She tried this formula herself,” Dr. Junger adds. 
Now, Paltrow’s sharing a way to prevent or treat adrenal fatigue more broadly with today’s launch of Goop Wellness, a supplement line created by the star-turned-lifestyle tastemaker—and the MDs she’s personally worked closely with.
Well, the reason there's "no established protocol for the condition" is because the condition doesn't exist.  In a paper in the Journal of Endocrine Disorders whose title should win the "World's Bluntest Title for an Academic Paper" award -- "Adrenal Fatigue Does Not Exist: A Systematic Review" -- Flavio Cadegiani and Claudio Kater, of the Universidade Federal de São Paulo Department of Medicine, were pretty unequivocal:
The term “adrenal fatigue” (“AF”) has been used by some doctors, healthcare providers, and the general media to describe an alleged condition caused by chronic exposure to stressful situations.  Despite this, “AF” has not been recognized by any Endocrinology society, who claim there is no hard evidence for the existence.
And after a thorough review of the available evidence, Cadegiani and Kater concluded the following:
To our knowledge, this is the first systematic review made by endocrinologists to examine a possible correlation between the HPA axis and a purported “adrenal fatigue” and other conditions associated with fatigue, exhaustion or burnout.  So far, there is no proof or demonstration of the existence of “AF”...  This systematic review proves that there is no substantiation that “adrenal fatigue” is an actual medical condition.  Therefore, adrenal fatigue is still a myth.
But a little thing like a peer-reviewed paper based on evidence never stops anyone like Paltrow, who is happy to sell you her vitamin supplements to combat your nonexistent adrenal fatigue, for $90 per month.

[image courtesy of the Wikimedia Commons]

To make up for the fact that she has zero scientific credibility, she's done the next best thing: given her supplements cutesy names.  Thus you can choose from "Why Am I So Effing Tired," "High School Genes," "The Mother Load," and (I kid you not) "Balls in the Air."

To me, that last one sounds like a completely different medical problem, and one that probably is worth a visit to a doctor.  But maybe I'm misinterpreting.

On the other hand, maybe I shouldn't take anything for granted.  Paltrow herself says that "High School Genes" almost got named "FUPA Blaster," where "FUPA" stands for "fat upper pubic area."

The whole thing brings up something that is a never-ending source of puzzlement for me; why we tend to trust celebrities more than trained scientists on topics of health and medicine.  Myself, if I'm going to spend $90 a month on a medical supplement, I want it to be (1) for a legitimate medical condition, and (2) a treatment that will resolve the symptoms of said medical condition.  Here, on the other hand, we have useless vitamin tablets being sold at great cost to treat an imaginary disorder.

Worst of all, the symptoms that Paltrow calls "adrenal fatigue" -- low energy, poor sleep, "brain fog" -- could well be the harbingers of something far more serious.  And if you choose to self-medicate with expensive celebrity vitamins instead, you might well fail to seek out help from a trained medical professional.

And lest you think that people would never do something that stupid, allow me to point out that just last week a woman in California died after being given an intravenous injection of turmeric to combat her eczema.

So caveat emptor, as usual.  Not to mention cavete Paltrowam.

Wednesday, March 29, 2017

One man's meat

A couple of days ago, my son and I were chatting, and he asked me if I'd ever heard about the concept of "high meat."

I told him I hadn't.  "High meat," he explained, is when people take the probiotic movement one step further, and eat meat and fish that have deliberately been left out until they are thoroughly spoiled.

It is an occupational hazard of writing here at Skeptophilia that occasionally someone will tell me about some damnfool claim, and it turns out they made it up just to see if I'll believe it.  The problem is, having written for seven years about the depths of nonsense to which the human mind can sink, it's hard for me to dismiss any claim out of hand.

After all, any species that can come up with downloadable medicines and homeopathic water is clearly capable of idiocy far beyond anything I could conceive of.

But I figured I'd hedge my bets, especially since my son has a reputation for being a bit of a wiseass at times.  (Can't imagine where he got that from.)  I said, "This is a joke, right?"

He assured me that it wasn't.  So I did some research.  And sure enough: there are back-to-nature types who are so back to nature that they want to recapture what it was like to be a hyena eating carrion in the hot sun of the African savanna.

Don't believe me?  Take a look at this article from the New Yorker by Burkhard Bilger, wherein he visits people who have various takes on the probiotic idea, finally ending up in the home of Steve Torma of Asheville, North Carolina, who has pushed the whole thing to the ultimate.  Torma makes his own "high meat" by letting raw meat or fish decompose in jars.  Then he eats it.  Bilger writes:
Torma ducked into the back of the house and returned with a swing-top jar in his hands. Inside lay a piece of organic beef, badly spoiled.  It was afloat in an ochre-colored puddle of its own decay, the muscle and slime indistinguishable, like a slug.
Even Torma seemed to recognize that it wasn't a very appealing diet.  "The first couple of bites," Torma said, "can be rough going."

There are a variety of other sites where I found out way more about this practice than I ever wanted to know.  The site Local Harvest has directions for preparing "high meat," attributing any resistance we might have to eating said decomposed glop to "prior conditioning."  The Raw Paleo Diet Forum goes into considerable detail about consuming "high meat," and says that if you end up with explosive diarrhea after eating it, not to worry because it's just your body "purging itself of toxins."

Okay, let's see.  Where do I begin?

Cooking, and food preservation strategies in general, caught on primarily because the people who used them were less likely to die of food poisoning.  There are a lot of bacteria out there that would be very happy to make you violently ill -- E. coli, Listeria, Cryptosporidium, and Salmonella come to mind -- and since decomposition happens because of the digestion of organic matter by bacteria, if you eat decomposed food, you are approximately 1,582,614 times more likely to get bacterial food poisoning than the rest of us.

And the symptoms you get are not from the body "purging itself of toxins."  What it is doing is attempting to purge itself of the pathogenic bacteria you were stupid enough to consume.

Consider, too, that we are evolved (not "conditioned") to avoid rotten stuff.  Decomposing meat contains two chemicals -- tetramethylenediamine and pentamethylenediamine -- that are so foul-smelling that their more common names are "putrescine" and "cadaverine," respectively.  Our noses are early-warning systems, giving us valuable information that is essential to our survival.

Including, for example, "Don't eat something that smells like a putrescent cadaver, you fucking moron."

[image courtesy of the Wikimedia Commons]

It's not that the whole probiotic thing is a bad idea.  Some fermented food -- pickles, sauerkraut, and kimchi, for example -- are fermented with specific strains of bacteria to produce particular flavors and odors.  These bacteria are also chosen on the basis of (1) tasting reasonably good, and (2) not killing you.  (Many of these bacteria are part of a healthy intestinal flora, which has been shown to protect you from diseases like ulcerative colitis and irritable bowel syndrome.)

Eating things that have rotted with your ordinary, garden-variety bacteria, however, is a good way to spend the next few days on a first-name basis with your toilet.  There's a reason we have strict sterilization protocols for food, such as cooking, canning of vegetables, and pasteurization of milk.  It reduces the likelihood of the Bad Guys getting into your digestive tract.  Consider the FDA's stance on pasteurization: "Raw milk is inherently dangerous," their guidelines on dairy safety state.  "It should not be consumed by anyone at any time for any purpose."

So that's unequivocal.

But if you want to try out life as a vulture, have at it.  Me, I'm gonna stick with "low meat," medium-rare, with a large glass of red wine, which not only tastes great but is much less likely to give me horrible bacterial infections.  Call me particular, but I'm just kind of finicky that way.

Tuesday, March 28, 2017

Governmental facepalms

Because we evidently needed another reason to facepalm over a Trump appointee, today we consider: John Fleming, assistant secretary for health technology at the Department of Health and Human Services.

Fleming has some decidedly peculiar ideas.  In his book Preventing Addiction: What Parents Must Know to Immunize Their Kids Against Drug and Alcohol Addiction, Fleming states that opiates are proof of the existence of god:
Were it not for these drugs, many common and miraculous surgeries would be impossible to either undergo or perform.  In my opinion this is no coincidence at all.  Only a higher power and intellect could have created a world in which substances like opiates grow naturally.
Which brings up a couple of troubling questions:
  1. Why do these miracle substances intelligently created by a deity so often lead to addiction and the potential for overdose?
  2. If opiates are a blessed gift from god because they "grow naturally," why are people of Fleming's stripe virtually all against the legalization of marijuana?  Seems like an intelligent deity's creation of marijuana could be argued not only from the standpoint that it "grows naturally," but because its consumption is so beneficial to the tortilla chip industry.
 It's a bit like Dr. Pangloss said in Voltaire's masterpiece Candide:
It is clear, said he, that things cannot be otherwise than they are, for since everything is made to serve an end, everything necessarily serves the best end.  Observe: noses were made to support spectacles, hence we have spectacles.  Legs, as anyone can plainly see, were made to be breeched, and so we have breeches...  Consequently, those who say everything is well are uttering mere stupidities; they should say everything is for the best.
When, of course, rather than giving us noses to support spectacles, god could just have given us all perfect eyesight rather than noses built to support spectacles.


[image courtesy of the Wikimedia Commons]

This, however, is not the only bizarre thing in Fleming's book.  He says there's a correlation between tattoos and drug addiction:
Body art comes into play in drug addiction as well, although obviously, not all who have a tattoo are addicts.  A sailor who gets a single tattoo on his arm or an adult woman who has a small butterfly tattooed on her lower abdomen are not necessarily drug addicts or even rebellious — just dumb, at least temporarily!...  When you see that your child has become interested in body art or has a fascination with the Goth or other subculture, then be on alert, because your child is likely headed into rebellion and possible drug experimentation.
So this makes me wonder how my two rather large tattoos haven't resulted in my being addicted to cocaine or something.  Despite the size and elaborate nature of my own body art, maybe I'm still in the category of "temporarily dumb."

Last, it turns out that Fleming himself might not have much right to point fingers about temporary stupidity, because he is one of the people who fell for the story in The Onion that Planned Parenthood was building an "$8 billion abortionplex."  Then, not having learned the lesson "if you're not smart enough to recognize satire and fake news, at least be smart enough to check your sources," he delivered a speech on the floor of Congress in 2013 to communicate the alarming news that the Department of Defense was starting to round up and court martial Christians so as to "create an atheist military."

Where, you might ask, did Fleming get this "information" from?

From Breitbart, of course.

So come on, folks.  Is it too much to ask to have a few government appointees who are competent, intelligent, and sane?  Because the ones we have now, in my dad's trenchant phrase, couldn't pour piss out of a boot if the instructions were printed on the heel.

Myself, I'm beginning to wonder if this is an elaborate experiment being run by alien scientists to see how long it takes us to figure out that the whole American government is some kind of huge put-on.  The question they're trying to answer is whether we'll just go along with it unquestioningly.  At some point, maybe they're expecting us to say, "Okay, ha-ha, very funny.  Game's up.  Come out of hiding, alien overlords, and give us back some semblance of normalcy."  I don't know how else you'd explain people like Fleming, not to mention Steve Bannon, who looks like he's spent the last ten years pouring Jack Daniels on his breakfast cereal.

Monday, March 27, 2017

The hydra of horrible ideas

For today's post, we will focus our attention on a Skeptophilia frequent flyer -- Representative Lamar Smith, who is narrowly edged out by Senator Mitch McConnell as the world's most punchable face.

[image courtesy of the Wikimedia Commons]

Smith is in the news this week because of his appearance as a keynote speaker at the 12th annual conference of the Heartland Institute, a petroleum-industry-funded "think tank" dedicated to casting doubt on climate change science.  Smith has been unrelenting in his attacks on the scientific community, which makes it even more appalling that he has since 2013 been the chair of the House Committee on Science, Space, and Technology, a committee that also includes not only the virulently anti-science Dana Rohrabacher but Bill Posey of Florida, who believes that vaccines cause autism.

So the governmental oversight of scientific research in the United States falls clearly into the category of "heaven help us."  There's no doubt that Smith is in the pocket of the fossil fuels industry; they are far and away his largest donors, having funded his campaigns to the tune of $600,000.

And no one can say the industry isn't getting what they paid for.  Smith's talk at the Heartland Institute was fairly crowing with delight over the opportunity they have to completely gut any environmental legislation they want, given the appointment by the Trump administration of anti-environmental climate change deniers to damn near every leadership post in Washington.  "I think the president has ushered in a permanent change in the political climate," Smith said, to cheers from the audience.  "And by that I mean I think he’ll keep his promises and that he’ll do exactly what he said.  You’re seeing that in his appointments, like Scott Pruitt at EPA, for example.  So … I don’t think you’ll have any disappointment on any of those issues."

When an audience member suggested that Smith stop using the term "climate science" in favor of "climate studies" and "scientific research" in favor of "politically correct science," Smith agreed with a grin, and said he'd go a step further.  "I’ll start using those words if you’ll start using two words for me," Smith said.  "The first is never, ever use the word progressive.  Instead, use the word liberal.  The second is never use the word 'mainstream' media, because they aren’t.  Use 'liberal' media. Is that a deal?"

More cheers.

Most alarmingly, Smith said he's planning on increasing the pressure on research scientists to publish only results that support the goals of his political backers.  In fact, he spoke at length about his plans to craft legislation to punish federally-funded researchers who publish data that contradicts the party line -- in other words, that doesn't meet his warped concept of peer review, which means essentially having to pass a governmentally-set purity test.  To hell with what the evidence says; science becomes whatever the conservative agenda says it is.

The timing of this meeting is not without irony.  Just this week, research was published in Nature that the amount of warming we've already seen is leading to "devastating" bleaching of coral reefs; that climate change is enhancing the conditions that lead to life-threatening "smog events" in Beijing and elsewhere; that the winter of 2016-2017 showed "exceptional... periods of record-breaking heat" in the Arctic; and that last month was the second warmest February in the 139 years such records have been kept -- the warmest was February 2016.

But to Smith and his cronies, none of that matters.  It's all "politically correct climate studies."

All of this illustrates one rather sobering fact; for those of us on the left-ish side of things who breathed a sigh of relief when Paul Ryan's disaster of a health care bill died on the floor of the House last week, the fight is far from over.  This administration is proving to be a hydra of horrible ideas.  Destroy one of them, and two more appear in its place.

And this time, one of the hydra's heads is wearing the smarmy, smirking face of Lamar Smith, which is a mental image that will haunt my nightmares for some time to come.

Saturday, March 25, 2017

Hell's gate

As a diversion from less cheerful subjects like what is currently happening in Washington, D. C., today we will consider: the Gates of Hell.

The interesting thing about the whole concept of hell is that it's connected to Christianity, and yet there's not much of a mention of it in the bible.  The Old Testament version, Sheol, was not really the traditional flaming inferno; it was more of a gray, dreary place cut off from hope and light, sort of like Newark but with less traffic.  The concept of a fire-and-brimstone version of hell doesn't seem to come up until the New Testament, for example Matthew 10:28 and Mark 9:43, where we are introduced to such fun notions as "the fiery furnace" and "unquenchable fire" into which you get pitched if you break the Ten Commandments and commit the Seven Deadly Sins, unless you're also a billionaire fast-talking con man, in which case you get elected president of the United States instead.

Wait, I said I was going to keep this post apolitical.  My bad.

Because of the mention of fire, there's been a picture developed that hell is a hot place underground, which has of course connected it in some people's mind with volcanoes and other subterranean phenomena.  There are a variety of places on Earth that have been considered possible candidates for gates to hell, three of which I describe below.

First, we have the Batagaika Crater in Siberia, which locals have nickname the "Hellmouth."  It's a pretty impressive feature, to be sure:


At its widest, it's a kilometer across and 87 meters deep, and is getting bigger.  The crater has nothing to do with hell, though, unless you're talking about the manmade hell we're creating by ignoring the human causes of climate change; it's something geologists call a megaslump, when removal of groundwater and thawing of permafrost cause massive subsidence.  So it's pretty awful, but doesn't have much to do with the punishment of the damned.

A second candidate is the Necromanteion of Baiae, a tunnel system near the city of Naples which apparently hosted a magical oracle who was supposed to be able to communicate with the spirits of the dead.  She would enter the tunnel, breath the magical vapors, and come back and tell the locals what the dead had to say for themselves, which mostly was confusing, garbled nonsense, that the oracle's handlers then got to interpret whatever way they wanted.


What the dead probably should have told the oracle was "it's a stupid idea to breathe magical vapors in an area of high volcanic activity," because the gases coming out of the tunnel were high in sulfur dioxide and hydrogen sulfide, both of which are quite toxic, and explain her confusion without any magical explanation needed.  Baiae is near the Campi Flegrei, or burning fields, an area of fumaroles and boiling mud pits that illustrate that Mount Vesuvius didn't exhaust its capacity for violence when it destroyed Pompeii in 79 C. E.

Last, we have Darvaza, in the Karakum Desert of Turkmenistan.  Like Batagaika, Darvaza is due to the actions of people -- in this case, a natural gas drilling facility that went very, very wrong.  At some time in the 1960s -- given that we're talking about the Soviets, here, there's no certain information about precisely what happened when -- the ground collapsed underneath a gas-drilling rig, and during the collapse the methane seeping from the walls of the crater ignited.  People expected that it'd burn itself out quickly.

It didn't.


Darvaza is still burning today, and has become a tourist attraction for travelers who don't mind the fact that (1) it reeks of sulfur, (2) if you stay there long enough, the fumes will make you violently ill,  and (3) there are no amenities for miles around.  But if you're an adventurous sort, it's certainly something you won't see anywhere else on Earth.

So that's a trio of candidates for being the doorway to hell.  If none of these float your boat, however, there are actually dozens of others.

And that's not even counting Newark.

Friday, March 24, 2017

Drawing the line

One of the things I've liked the most about my seven years writing here at Skeptophilia is that it's given me the opportunity to think, learn, and reconsider my own views.  The point of skepticism, it seems to me, is to be open to revising one's stance if presented with new information or better arguments, and thus refining one's own perceptions.

Yesterday's post, about a couple of incidents in colleges where speakers with unpopular views were harassed or threatened with being banned outright, elicited a couple of comments from loyal readers that got me thinking about what I'd written.  And while I won't say it's completely changed my mind, it has made me realize that the topic is far more of a minefield than I'd realized.

[Note: I am quoting them with their permission.]

The first wrote:
While a person who makes up part of a vulnerable demographic for whatever reason absolutely has the right to avoid going to an event where they might be exposed to hate speech, simultaneously, allowing others on a campus to hear opinions that confirm them in thinking that hate speech against other people is a thing that is acceptable in society today seems overly affirming to people that perhaps don't deserve any audience at all. 
Not every campus speaker speaks hatefully, or on hateful topics, and you're right that unless we are exposed to all sides of an argument, we cannot develop informed opinions on that argument.  It's also incredibly difficult to draw a line in the sand that says 'these words are hateful, these words are just provocative, and these words are fine' - and I'm not sure that we should. 
So how do we listen to all sides of an argument that involves hate speech without making the victims of the hate speech feel that we are supporting the existence of said hate speech against them?   
I'm not sure there's an answer to this out there, but figured I would see what you thought.
I responded:
It's a tough question. I agree that to the disempowered, even having speakers who hold those kinds of views feels like tacit acceptance.  But I still think that the way to combat that is to work toward empowering the disempowered -- the professors encouraging them and supporting them in speaking up, even helping them to formulate questions and criticisms, or showing up with them to a talk -- is much better than denying the speaker the right to speak.  Like in the case with Stanger [the professor at Middlebury College who was assaulted after inviting Charles Murray, a political scientist with controversial views about the genetics of race and intelligence, to speak at the college] -- she was up front that she disagreed with Murray, but wanted him to present as an opportunity for her students to engage in reasoned discussion (and, perhaps, refutation of Murray's arguments).  It didn't work out that way, and the violence that ensued proved nothing.
She wrote back:
But that assumes that the students who feel disempowered by the topic of the speech will be able and stable enough to attend, listen to a speech that denigrates and attacks them (politely), before being able to disagree or question someone with which they disagree...  [You] might liken it to sitting down to listen to an hour of your worst childhood bullies argue about why they should have bullied you, or even to sitting down to listen to an hour of explaining why you shouldn't exist as a person at all. 
Some people are strong enough to do that, but not all of them are, no matter how much empowerment their professors try to share with them, which is why they would be the ones that don't attend - but then we have no one to question and debate.
And it turns out that the views of Laura Kipnis, whose talk at Wellesley prompted a group of faculty to draft a letter suggesting that such speakers be barred from presenting on campus, are not as academic and dispassionate as she claimed.  In a recent essay in The Chronicle of Higher Education, Kipnis makes some statements that would strike many of us as ethically questionable -- that sexual relationships between professors and students are okay because when she was in college, "hooking up with professors was more or less part of the curriculum...  We partied together, drank and got high together, slept together."  She scoffs at the idea that such relationships could result in a more powerful individual victimizing a less powerful one, or using that power differential for their own gain.

And she doesn't hesitate to engage in low blows against people who disagree with her.  About a man whose attitudes about inappropriate humor and unwanted sexual advances Kipnis considered puritanical and overly delicate, she even went so far as to suggest that his nervous coin-jangling in response to her questions was masturbatory.  In an academic journal.  Kipnis writes:
I recalled a long-forgotten pop-psychology guide to body language that identified change-jangling as an unconscious masturbation substitute. If the leader of our sexual-harassment workshop was engaging in public masturbatory-like behavior, seizing his private pleasure in the midst of the very institutional mechanism designed to clamp such delinquent urges, what hope for the rest of us?
So it seems like Kipnis is dancing pretty close to the line herself.

Another reader commented:
I'm generally with you on this topic, but I think we have to take off our privilege blinders.  Neither you or I would ever be compelled to take time from our schedules and prepare/engage in a "scholarly debate" with someone who says we are part of a genetically inferior race, or that our family members should be immediately locked up and deported. It's very easy for us straight white dudes to keep things civil when our humanity is never attacked.
Which is also spot-on.  My own attitudes about speakers being denied the right to speak based upon controversial viewpoints would probably be very different if I myself was a minority.  As the reader commented, being a white straight male makes it awfully easy for me to be on the side of free speech -- since that free speech is seldom used to harass or demean me.

[image courtesy of the Wikimedia Commons]

So I'm left with the conclusion that this is a great deal harder than it seemed at first.  To fall back on the basic rule of banning only speech that promotes criminal acts or violence is to ignore the fact that free speech has been used many times in the past to incite hatred, discrimination, and marginalization.  And ignoring that fact is only one step away from tacit acceptance.

On the other hand, where to draw the line is problematic.  I still believe that colleges do students a terrible disservice by insulating them from controversy; prohibitions against hearing speakers or reading books or papers that voice dissenting opinions are, by and large, antithetical to the reason we have education in the first place.  But the complexity of this issue, and the spectrum of where those controversial views might fall, make it a far thornier decision than I had realized.

Many thanks to my readers who took the time to respond to yesterday's post -- especially the ones who challenged me on what I wrote.  After all, having written a piece about how important it is to be pushed into reconsidering your preconceived notions, it would be a little hypocritical of me not to be willing to engage in a bit of that myself.