NEW YORK -- The New York Police Department monitored Muslim college students far more broadly than previously known, at schools far beyond the city limits, including the Ivy League colleges of Yale and the University of Pennsylvania, The Associated Press has learned.

Police talked with local authorities about professors 300 miles away in Buffalo and even sent an undercover agent on a whitewater rafting trip, where he recorded students' names and noted in police intelligence files how many times they prayed.

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