A look at suspected al-Qaida operatives U.S. officials believe may be part of a plot to attack America: _ADNAN G. EL SHUKRIJUMAH: A Saudi native who used to live in South Florida. Nicknamed "Jafar the Pilot," El Shukrijumah is believed to be a possible leader of a terrorism cell or organizer similar to Mohamed Atta. He was a top planner of the Sept. 11 attacks and piloted one of the hijacked planes. FBI officials began searching for El Shukrijumah last year due in part to the overseas interrogation of captured al-Qaida senior planner Khalid Shaikh Mohammed. Federal prosecutors in northern...