Violence Grips Egypt after Military Crackdown

Cairo has been a virtual war zone since this morning, when security forces attacked the encamped supporters of ousted President Mohammed Morsi. The death toll could be in the hundreds with violence spreading around the country. A curfew is now in effect. Vice President Mohamed ElBaradei has resigned. Today's move had been predicted, but the violence of the assault has stunned Egyptians, international observers and the Obama White House, which says it opposes the new emergency law and "strongly condemns" the crackdown. Will Egypt return to martial law? We have an update.