In this 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 on the night of Tuesday, Sept. 11, 2012, in Benghazi, Libya. (AP Photo/Mohammad Hannon, File)

Unprecedented: 21 US Embassies To Close, Citing Vague ‘Threat’

On Sunday, the State Department will close 21 diplomatic posts around the world.