September 4, 2012 9:04 pm Michelle Obama Addresses Democratic National Convention Michelle Obama Addresses 2012 Democratic National Convention US & World Videos 18:12 Police begin to clear protesters from USC campus 2:34 Campus police union blames UCLA for violent response 3:18 USC's commencement preparation includes increased security patrol 1:56 1 person killed after car crashes into South LA church 3:30 Protest on USC campus continues ahead of graduation