REVEALED PREFERENCES. The oh-so-precious Cary Nelson, president of the American Association of Silent Generation Relics University Professors, posted a twee story at Inside Higher Ed.

Over 40 years ago, when I was still an undergraduate at Antioch College, the student government sent out a large number of letters to controversial or accomplished Americans and invited them to talk on campus. One who accepted was George Lincoln Rockwell, head of the American Nazi Party. Rockwell asked if he could bring 20 of his storm troopers with him, but permission was refused. So he asked if he could hold a news conference on campus; that request was turned down as well. He would be picked up at the airport, driven to the Yellow Springs, Ohio, campus to give his talk, and returned.

Although Antioch may not be anyone's image of a disciplined campus, the 500 students and faculty in the auditorium that day in 1964 were well disciplined indeed. They sat in absolute silence throughout the talk. When the question period came, no one raised a hand. Instead, everyone rose and exited, again in silence. So Rockwell began to curse us all. Still no one reacted. Eventually he gave up and left.

It wasn't long after that that Mr Rockwell was shot by one of his own followers. About the same time, a new generation of campus leftists discovered a tactic called verbal terrorism. In Mr Nelson's world, it's all still process and come let us reason together. Charming.

Of course some whom the public come to consider monstrous may not be so. The media and political groups can combine forces to create monsters where none are to be found. Then it is best for students and faculty to find out for themselves. High on my list of current faux monsters would be Ward Churchill and William Ayers.

Right on.

Many faculty and students across the country expect Churchill to be a relentless ideologue. If you spend time with him, as I have, you meet a rather low-key, affable fellow, who wears his trials surprisingly lightly. Ayers, billed as an unrepentant radical, is an accomplished education professor who talks about classrooms and books, not bombs. Yet talks by both have repeatedly been canceled, thereby denying our students the chance to form opinions based on direct experience.

The American Association of University Professors has repeatedly argued that an invitation is not an endorsement. So far as I remember, no one was silly enough to make the counter claim about the Rockwell invitation. Nor was it necessary for Columbia's president Bollinger to go to such embarrassing lengths to distance himself from Ahmadinejad. No one thought Columbia was promoting him for the Nobel Peace prize.

The next paragraph says more about Mr Nelson and all the other vicars of vacillation running higher education the wrong way than it does about higher education's critics.

But then efforts to get an invited speaker disinvited are not necessarily really based on anger at giving the person a platform, especially since real monsters often acquit themselves poorly on stage. They are as much as anything else efforts to housebreak American higher education, to establish external forces and constituencies as campus powers. They are about establishing who is really in charge -- students and faculty, or politicians, talk show radio hosts, and donors. Get a university to cancel Churchill or Ayers and anyone on the political or cultural spectrum whose views you oppose can be your next target. Once Hamilton College canceled Churchill and the University of Nebraska canceled Ayers, the playing field was open to all comers. Then state legislators could pressure the University of Oklahoma to cancel a talk by biologist Richard Dawkins. Why? Because the man treats evolution as an established fact. Oklahoma stood its ground, perhaps realizing it would be shamed for generations had it canceled the talk.

I'm waiting, Mr Nelson, for a public shaming of administrators at North Carolina for allowing verbal terrorism to prevent a former Member of Congress from speaking.

Hundreds of protesters converged on Bingham Hall, shouting profanities and accusations of racism while Tancredo and the student who introduced him tried to speak. Minutes into the speech, a protester pounded a window of the classroom until the glass shattered, prompting Tancredo to flee and campus police to shut down the event.

It's probably asking for the Moon to hope that the Association will look for complicity from North Carolina's diversity and sustainability establishments in organizing the protest. The article suggests the professional protest constituencies could have a motive.

Tancredo was brought to campus by a UNC chapter of Youth for Western Civilization, a national organization of students who oppose mass immigration, multiculturalism and affirmative action.

It presents clear evidence of faculty complicity in the verbal terrorism.

UNC-CH geography professor Alpha Cravey joined protesters in chanting the names of Marco Polo and Christopher Columbus.

And the practitioners of progressive intolerance have a useful acolyte in Chapel Hill.

UNC graduate student Tyler Oakley, who had organized the protest, said he regretted the broken window but not silencing Tancredo. "He was not able to practice his hate speech," said Oakley. "You have to respect the right of people to assemble and collectively speak."

That juxtaposition of hate speech with free assembly is priceless.

Here are Mr Nelson's concluding remarks.

We either must stand firm against these efforts to undermine the integrity of our educational institutions or agree that academic freedom no longer obtains in America. Boston College tried lamely to say the decision was purely an internal matter, but press coverage appropriately turns each of these incidents into a national test of an institution's values and commitments. Each institution's decision about whether to show courage or cowardice helps set a pattern, strengthening or weakening academic freedom everywhere. Thus we all benefited when Pennsylvania's Millersville University resisted legislative pressure and held an Ayers lecture as planned.

And we are all diminished by Boston College's incoherent performance. Because the consequences of these decisions are considerable, the campus as a whole must bear the cost of assuring that invitations are not withdrawn. If a threat requires extra security, let the campus itself -- not the students or faculty who issued the invitation -- cover the cost. That is the price of retaining academic freedom for a free society.

The integrity of academic freedom is being undermined from within, with the complicity of the Association, when it's not enabling it.