Excerpt:
Egyptian sheik Reda Shata considered himself a partner in New York's fight against terrorism. He cooperated with the police and FBI, invited officers to his mosque for breakfast, even dined with Mayor Michael Bloomberg.
Despite the handshakes and photo ops, however, the New York Police Department was all the while watching him. Even as Shata's story was splashed across the front page of The New York Times in a Pulitzer Prize-winning series about Muslims in America, an undercover officer and an informant were assigned to monitor him, and two others kept tabs on his mosque that same year.
An Associated Press investigation has found that the NYPD dispatched undercover officers into ethnic communities to monitor daily life and scrutinized more than 250 mosques and Muslim student groups in the years after the Sept. 11 terrorist attacks. Some of its programs were developed with the help of seasoned CIA officers.