Obama vows to "stand fast" as caskets from Libya return

The caskets bearing the bodies of Ambassador Christopher Stevens and three other Americans who died in an attack in Libya come home.

U.S. President Barack Obama is joined by U.S. Secretary of State as the bodies arrive at Andrew's Air Force base just outside of Washington,. D.C.

They all were killed after gunmen attacked the U.S. consulate in Benghazi Tuesday night.

(SOUNDBITE) (English) U.S. PRESIDENT BARACK OBAMA SAYING:

"We will stand fast against the violence on our diplomatic missions."

Clinton denounced attacks on U.S. embassies across the Muslim world - stemming from protests blaming America for a U.S.-made film that

demeaned the Prophet Mohammad.

(SOUNDBITE) (English) U.S. SECRETARY OF STATE HILLARY CLINTON:

"The people of Egypt, Libya, Yemen and Tunisia did not trade the tyranny of a dictator for the tyranny of a mob."

Obama vowed justice for the attackers -- adding host countries must provide security for diplomatic missions.