Millions of dollars in White House money has helped pay for NYPD programs that put entire American Muslim neighborhoods under surveillance.

The money is part of a little-known grant intended to help law enforcement fight drug crimes. Since the terrorist attacks of Sept. 11, 2001, the Bush and Obama administrations have provided $135 million to the New York and New Jersey region through the High Intensity Drug Trafficking Area program, known as HIDTA.

Some of that money — it’s unclear exactly how much because the program has little oversight — has paid for the cars that plainclothes NYPD officers used to conduct surveillance on Muslim neighborhoods. It also paid for computers that store even innocuous information about Muslim college students, mosque sermons and social events.

When NYPD Commissioner Raymond Kelly was filled in on these efforts, his briefings were prepared on HIDTA computers.

The AP confirmed the use of White House money through secret police documents and interviews with current and former city and federal officials. The AP also obtained electronic documents with digital signatures indicating they were created and saved on HIDTA computers. The HIDTA grant program is overseen by the White House Office of National Drug Control Policy.

The disclosure that the White House is at least partially paying for the NYPD’s wholesale surveillance of places where Muslims eat, shop, work and pray complicates efforts by the Obama administration to stay out of the fray over New York’s controversial counterterrorism programs. The administration has championed outreach to American Muslims and has said law enforcement should not put entire communities under suspicion.

The Obama administration, however, has pointedly refused to endorse or repudiate the NYPD programs it helps pay for. The White House last week declined to comment on its grant payments.

READ MORE: NBC NEW YORK