The CIA has launched an internal review over whether it illegally helped New York police spy on ethnic communities in New York City, New Jersey and Connecticut. Although the CIA is prohibited from conducting domestic spying, the Associated Press revealed last month the agency helped the New York City Police Department develop a so-called “Demographics Unit” that used informants, known as “mosque crawlers,” to monitor sermons without any evidence of wrongdoing and spy on people carrying out jobs typically done by Muslims.