As anti-capitalism Occupy Wall Street protests have grown to cities across the United States, they've also taken root at the nation's universities, where students have staged rallies and walk-outs from classes.On Thursday, students were among the thousands who took part in protests across the country. At the University of California, Berkeley, where 40 people were arrested in a violent confrontation with police last week, officers removed 20 tents on Thursday. At Harvard University, dozens of students have set up tents in the middle of campus. At the University of California, Davis, on Friday, multiple videos posted by witnesses showed a police officer directly pepper-spraying a group of protesters sitting passively on the ground with their arms interlocked. The students' concerns: The rising costs of tuition, seemingly insurmountable student debt and weak job prospects - issues unique to them, but which student organizers see as directly connected to the larger issues being raised by the Occupy protests.