urgent: Fox News confirms US Ambassador Christopher Stevens and three of his staff were killed last night in an attack on the American consulate in Benghazi, as anti-Islam film sparks attacks against US compounds in Libya and Egypt by armed Muslims outraged over anti-Islam film posted to YouTube.Marine Unit Dispatched to Secure Consulate | Ambassador Stevens Recalled as Selfless DiplomatAnti-Islam Filmmaker in Hiding After Protests at US Embassies | VIDEO: Officials Remember Ambassador Stevens PHOTOS: Angry Muslims Stage Protests Against US | VIDEO: Protesters Scale Wall of US Embassy in Cairo US Embassy in Algiers warns US citizens to avoid non-essential travel after Libya attackIsrael Distances Itself From Prophet Muhammad Film | US Ambassadors Killed in Line of Duty