December 3 is the anniversary of The Free Speech Movement at Berkeley University in 1964. Despite the US regime's claimed commitment to free speech, this day saw nearly 800 students arrested for opposing the US regime.
The issue at hand was that the University was cracking down on "political activity" in the University, be it on-campus or off. The political activity of course was civil rights. In the eyes of the students, the US was a racist, imperialist, and brutal regime. With University policy being that only mainstream liberal parties were allowed, and professors who were required to swear loyalty to the oppressive regime, the stage was set for conflict.
The University responded to this activism by persecuting the student leaders. The students responded by having a sit in at the University. A group of a couple thousand students occupied one of the buildings in the University. They sang songs, they watched movies, and they studied.
Eventually, the police closed off the exits to the building and arrested everyone inside. They dragged people down as many as 90 steps of marble stairs. Ultimately, after much ado, the students did win this one, and the liberal regime was forced to allow talk of civil rights on campus. Recently, an event happened where right wingers marched into government buildings and threatened to kill US politicians. Compare the actions.