Revealed: inside story of US envoy's assassination - World Politics - World - The Independent Still want Hillary and Co. to pick up that 3 AM phone call? Be sure to read the comments. "The killings of the US ambassador to Libya and three of his staff were likely to have been the result of a serious and continuing security breach, The Independent can reveal. American officials believe the attack was planned, but Chris Stevens had been back in the country only a short while and the details of his visit to Benghazi, where he and his staff died, were meant to be confidential. "The US administration is now facing a crisis in Libya. Sensitive documents have gone missing from the consulate in Benghazi and the supposedly secret location of the "safe house" in the city, where the staff had retreated, came under sustained mortar attack. Other such refuges across the country are no longer deemed "safe". "Senior officials are increasingly convinced, however, that the ferocious nature of the Benghazi attack, in which rocket-propelled grenades were used, indicated it was not the result of spontaneous anger due to the video, called Innocence of Muslims. Patrick Kennedy, Under-Secretary at the State Department, said he was convinced the assault was planned due to its extensive nature and the proliferation of weapons."