In the most detailed explanation yet of the attack in Benghazi, Libya, that killed U.S. Ambassador Christopher Stevens and three other Americans, two senior State Department officials said there was no prior indication that an attack was imminent.
The officials, who briefed reporters on background in a conference call Tuesday evening, said there was "nothing unusual" throughout the day of the attack, September 11. The ambassador held an evening meeting with a Turkish diplomat and then retired to his room in one of the compound's buildings at 9 p.m., according to the officials.
The call, a day ahead of a congressional hearing into security failings at the diplomatic mission, was an attempt to offer the State Department's view that the severity of the attack and speed at which it unfolded made it impossible to defend even with some of the increased security measures that had been requested – but not fulfilled – before September 11.
This morning on "Early Start," CNN's Elise Labott explains the latest details in the investigation into the attack in Benghazi.