Obama condemns US envoy killing.

US ambassador Chris Stevens and three other US diplomats were killed in a rocket attack on their car late yesterday, a Libyan official said, as they were rushed from a consular building stormed by militants denouncing a US-made film insulting the Prophet Mohammad.

A 14-minute clip of the film, The Innocence of Islam, aired on YouTube shows a fictional attack by Muslims on a Christian family followed by an account of the origins of Islam depicting the Prophet Mohammed as a womaniser…