Below, John Derbyshire noted that he'd been mentioned in a TED Talk. That's Zachary R. Wood: Why it's worth listening to people you disagree with.
Wood was head of a group called Uncomfortable Learning at Williams College, and in 2016, heinvited John Derbyshire to speak about the kind of issue that no one at Williams is able to talk about. The President of the college (Adam Falk) wouldn't let Derb speak, allegedly because he was too extreme. In 2017, we learned that it was because Falk had caved to Antifa death threats.
You can watch the talk below: