US intelligence learns that a Turkish extremist group named Kaplancilar, led by Metin Kaplan and based in Cologne, Germany, had planned a suicide attack. The conspirators, who have been arrested, planned to crash an airplane packed with explosives into the Kemal Ataturk mausoleum in Ankara during a government ceremony. The Turkish press says the group has cooperated with Osama bin Laden, and the FBI includes this incident in a bin Laden database. [New York Times, 2/5/2002; US Congress, 9/18/2002; US Congress, 7/24/2003 ]