Obama says buck stops with him on Libya

HEMPSTEAD, N.Y. (AP) — President Barack Obama says the responsibility for what happened at the U.S. consulate in Benghazi, Libya, falls to him and to no one else. Republican rival Mitt Romney says the president's team either didn't know all the details — or didn't tell the truth — about the death of four Americans there immediately after the attacks.

Obama and Romney met Tuesday for their second debate and sparred over the United States' response to the Sept. 11 attacks that killed America's ambassador of three others in Libya. Obama says he wants to find out exactly what made possible those four deaths and calls Romney's response offensive and designed to score political points.

Romney says the attacks represent the unraveling of Obama's foreign policy.