"For years federal agents paid little heed to the Brotherhood, but after Sept. 11 they noticed that many leads went back to the Brotherhood. "We see some sort of nexus, direct or indirect, to the Brotherhood, in ongoing cases," said Dennis Lormel, until recently a top FBI counterterrorism official."

"The architect of the Sept. 11 strikes, Khalid Sheik Mohammed, told U.S. interrogators that he was drawn to violent jihad after joining the Brotherhood in Kuwait at age 16 and attending its desert youth camps, according to the report released in July by the national commission that investigated the attacks."

"Brotherhood radicals in Germany and Spain are suspected of organizing logistical support for the al Qaeda cell that carried out the attacks. Western governments subsequently shut down a huge banking network in Switzerland, Liechtenstein and the Bahamas that was set up by a leading Brotherhood figure, citing its numerous financial ties to al Qaeda and other terrorists. The founder, Youssef Nada, denies wrongdoing."