WASHINGTON (AP) - The FBI issued a worldwide alert Thursday for Adnan G. El Shukrijumah, a Saudi who government officials said may be plotting terrorist attacks against the United States as part of al-Qaida. A senior law enforcement official, speaking on condition of anonymity, said the FBI believes the 27-year-old Saudi received flight training, possibly in Florida. A second senior source said El Shukrijumah possessed a Florida driver's license. Officials said El Shukrijumah's organizing capabilities are comparable to those of Mohammed Atta, the suspected organizer of the Sept. 11 terror attacks. Fifteen of the 19 hijackers were Saudis and some,...