Noah Berger Photography

Protesters rallying against police violence storm a lecture with PayPal co-founder Peter Thiel at the University of California at Berkeley campus in Berkeley, California December 10, 2014. About 150 people marched peacefully for several hours before some began breaking windows, looting a cell phone store and spray painting graffiti. Police dispersed the protesters, who gathered for the fifth consecutive night, after two undercover police officers marching with the group were assaulted. REUTERS/Noah Berger (UNITED STATES)