TODAY | August 16, 2013
>> first, the calls on nationwide marches today. richard engle is in cairo once again. good morning.
>> good morning, matt, egypt is bracing for violence. protestors are calling this a day of rage. they already started to gather here in the square which is very close to cairo 's train station . there was a heavy security presence on the streets.
>> reporter: egypt is showing no signs of flexibility deploying more armored vehicles in cairo this morning. an emergency law in effect. detentions permitted. live ammunition authorized. negotiations with the protestors that demand that the president from the muslim brotherhood be restored. the muslim brotherhood leading the opposition isn't talking peace either. the supporters attacked churches, set fire to government buildings , and killed dozens of policemen. but it's still the demonstrators doing nearly all the dying. families collected hundreds of dead from a mosque in cairo yesterday. many overwhelmed with grief. bodies on a floor and tears soaking through a woman's veil. until overnight even the mosque was raided by police and the bodies seized. president obama had harsh words and cancelled a joint military exercise we i didn't want.
>> the united states strongly condemns the steps taken by egypt 's interim government and security forces . we deplore violence against civilians.
>> reporter: washington gives more than 1 billion dollars in aid a year. they have long been a reliable u.s. ally. it still has. egypt 's government said the president's comments encouraged the opposition to protest more, leading to more violence. and there is another concern here today. the protestors that back the muslim brotherhood , people around them -- the people that live in this area, don't support them. so there is a chance you could see clashes between egyptian civilians, savannah.
>> all right. richard engle in