A car bomb exploded several hundred yards from an armed convoy carrying a U.S. diplomat in Baghdad on Monday, but the official was not hurt, the U.S. Embassy said.A U.S. Embassy official, speaking on condition of anonymity for security reasons, did not identify the diplomat in the convoy at the time of the 2 p.m. blast. An Associated Press photographer in Baghdad’s western Yarmouk district saw what appeared to be the convoy — consisting of several late model SUVs guarded by U.S. military Humvees — speed past him while a black cloud of smoke from a suicide car bomb blast rose into the air some 500 yards away.Full Story