full night s sleep with a full roster of international crises awaiting his urgent attention. just today a suicide bomber at an entrance to the u.s. embassy in ankara, turkey, killed himself and an embassy security guard. the white house said it s working closely with turkish authorities to investigate what it s called a terrorist attack. meanwhile, violence escalated in egypt as thousands defy a curfew throwing molotov cocktails at the outer wall of the presidential compound. police have responded by firing water canons, rubber bullets, and tear gas at protesters. clashes this week have left dozens dead and prompted president morsi to declare a state of emergency in three cities along the suez canal. all of this in a nation that john kerry in his confirmation hearings declared crucial to our objectives in the region. joining us now from cairo, nbc news foreign correspondent ayman mohadine. i apologize, go ahead. you go ahead. tell us what s the latest from