Federal officials asked for the public's help Wednesday in finding seven people possibly connected to Al Qaeda who may be planning an attack on the United States or who may have information about such a plan. Following are short bios on the seven along with links to their FBI Web sites.

--Adnan El Shukrijumah. A Saudi native who lived in South Florida, Shukrijumah is believed to have helped mastermind the Sept. 11, 2001, attacks. Federal officials have a special interest in him because of his familiarity with the United States and his ability to speak English.

--Aafia Siddiqui. A Pakistani woman who studied at the Massachusetts Institute of Technology, Siddiqui is not charged with being an Al Qaeda operative but officials believe she can help others who are planning to harm America. Authorities believe she spent time in Maryland.

--Fazul Mohammad. Was one of four men charged with conspiracy in four cases: The Nov. 28, 2002, bombing of Paradise Hotel north of Mombasa, Kenya, which killed 15 people; the nearly simultaneous attempt to shoot down an Israeli airliner; an alleged plot to destroy the new U.S. Embassy in Nairobi in June 2002; and the 1998 bombing of the U.S. Embassy in Nairobi, which killed 219 people, including 12 Americans.

--Ahmed Ghailiani. Believed to have participated in the 1998 bombings of two U.S. embassies in East Africa.

--Amer El-Maati. A Kuwaiti-born man sought in connection with possible terrorist threats in the United States in 2002. The FBI has issued an alert to be on the lookout for El-Maati in November 2002.

--Abderraouf Jdey. A Tunisian who may have a Canadian passport. The FBI in September 2003 announced he was one of four men wanted for questioning in an unspecified terror plot against U.S. interests. On July 31, the FBI reissued a "Be On the Lookout" advisory for Jdey, who was "considered extremely dangerous." In January, Jdey was identified as one of five individuals depicted on videotapes recovered from the destroyed residence of Usama bin Laden's military chief, Muhammad Atef. Officials say Atef was killed by a U.S. airstrike in November.

--Adam Gadahn. A 25-year-old U.S. citizen who uses two other names as well: Adam Pearlman and Abu Suhayb Al-Amriki. Gadahn went to Al Qaeda training camps and once served as an Al Qaeda translator, according to FBI Director Robert Mueller. Gadahn himself states on an Islamic Internet site that he grew up on a goat ranch in Riverside County, Calif., and converted to Islam in his late teen years after moving to Garden Grove, Calif.

The Associated Press contributed to this report.