BERLIN- A Syrian-born businessman who knew Sept. 11 ringleader Mohamed Atta and has been accused of operating an al-Qaida front lashed out at President Bush on Thursday and denied any connection to terrorism. Mamoun Darkazanli, described by the FBI as a well-connected agent of Osama bin Laden, was questioned by German police shortly after the terrorist attacks on the World Trade Center and the Pentagon. But he was freed for lack of evidence and continues to live in Hamburg, Germany, where Atta and two other hijackers had lived. Speaking to The Associated Press in a telephone interview, Darkazanli bristled when...