KARACHI, September 15 (PNS): Sitting in a black sedan, four agents of the United States Federal Bureau of Investigation (FBI) watched intently as a posse of Pakistan military intelligence and police officials climbed a narrow staircase to enter a second floor apartment of a four-apartment building in Karachi's posh residential district of Defence Society early morning on September 11. The raiding party had specific information from two Yemenis arrested in another raid a few hours earlier that a "bunch" of al-Qaeda suspects was hiding in the Defence Society apartment. As the uniformed and plain clothes intelligence operatives and policemen barged...