The First 100 Days: Future of ObamaCare and Trump's Repeal-Replace Plans

Joe The Plumber Hits Pelosi on 'New Direction' Denial: 'Better Keep Thinking That'

WATCH: College Basketball Coach Sounds Off on Participation Trophies in Epic Rant

University of Texas-Austin ethics professor Daniel Bonevac, who has taught a course called 'Contemporary Moral Problems' for about 30 years told Tucker Carlson that it has become very difficult to teach the course because a small number of students actively try to stifle unpleasant debates.

Bonevac said it is not usually his own students or university as a whole that does so, but that "people outside the class" do not want debates on certain topics to take place.

For each issue discussed, Bonevac said one session is dedicated to the best arguments for a certain topic, and the following session for the best arguments against them.

"Certain issues [have become such] hot potatoes," he said, "as soon as a controversial topic comes up with an approved politically correct opinion, students turn off," he said.

Bonevac discussed the fear of debate on a larger scale, in that there is apparently a trend toward stifling debate of topics the younger generation finds controversial.

He said that on one of the final days of his class, someone he "had never seen before" stood up in the back of the room and went on a critical "diatribe" for several minutes until the bell rang and class was dismissed.

Why Are Terror Leader al-Awlaki's Video Messages Still on YouTube?

Gingrich: Trump's Taiwan Call Lets China Know They Can't 'Intimidate' the U.S.

Rep. Cramer: Standing Rock Sioux Tribe's Pipeline Protest Was 'Co-Opted'