As worldwide investigations into the mysteries of the Sept. 11 terror conspiracy roll on, officials in Europe have pondered an enigma: Where is Abu Qatada? Described by some justice officials as the spiritual leader and possible puppet master of al-Qaeda's European networks, Qatada has been missing since mid-December, after British authorities confiscated his passport, froze his assets and ordered him confined to his London home.
With Jordan seeking his return to serve a life sentence for terror-related crimes, some observers figured Qatada went underground and perhaps left Britain to avoid extradition. But senior...