Benghazi Consulate Attack Being Addressed In Congress

Benghazi Consulate Attack Being Addressed In Congress
In this Thursday, Sept. 13, 2012 file photo, a Libyan man investigates the inside of the U.S. Consulate after an attack that killed four Americans, including Ambassador Chris Stevens. (AP Photo/Mohammad Hannon)

Critics in Congress are bringing in new witnesses with claims the White House failed to protect the Americans who died in the Benghazi consulate attack. ABC's Sam Donaldson tells us why this is all coming up again.