Secretary of State Hillary Rodham Clinton faces tough questions in her long-awaited congressional testimony concerning the assault on the U.S. diplomatic mission in Benghazi, Libya, that killed Ambassador Chris Stevens and three other Americans.
Clinton is the sole witness Wednesday at back-to-back hearings before the Senate and House foreign policy panels. They will cover the September raid, an independent panel's review that harshly criticized the State Department, and what the Obama administration is doing to beef up security at U.S. facilities worldwide.
Clinton had been scheduled to testify before Congress last month, but an illness, a concussion and a blood clot near her brain forced her to postpone her appearance.
Her marathon day will probably be her last in Congress before she steps down as secretary of state.