FBI focus is `` to hold people accountable , '' Holder says . The FBI team arrived Thursday and worked through Thursday , an official says . The Justice Department 's visit had been stalled over security concerns . The killings in September spawned scrutiny of U.S and a political uproar in the Libya .
Justice Department 's focus is `` to hold people accountable , '' Holder says . The FBI team arrived Wednesday and worked through Thursday , an official says . The FBI visit had been stalled over security concerns . The killings in September spawned scrutiny of Libya and a political uproar in the U.S .