WASHINGTON, June 15, 2006 – A bus bombing in Afghanistan killed several passengers this morning, and Operation Mountain Thrust continues in the southern portion of the country, military officials said. A bus exploded near the intersection of highways 1 and 4 in Kandahar City at about 8 a.m. today. The explosion, caused by a bomb on the bus, killed seven and injured 17. It was believed to be a deliberate attack against Afghan civilians. Afghan national security forces and coalition forces have responded by assisting with the evacuation of casualties to the Mirwais Hospital in Kandahar City. "This is a...