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Three ways in which 9/11 altered policing in the U.S.

Billions of dollars poured into counterterrorism efforts, ratcheted-up surveillance and information-gathering "fusion centers" are just a few of the ways in which the terrorist attacks of September 11, 2001 altered the way law enforcement works in the United States.

Those who have noticed the changes most, perhaps, are immigrant communities (more on that tomorrow), but there have been other profound changes that the general public is less aware of. KALW's The Informant blog has rounded up three ways in which 9/11 changed policing, including this most notable example, increased domestic surveillance:

Police agencies had spied on people before, but the terrorist attacks of September 11, 2001 inspired a new wave of domestic surveillance.

Just this month, the AP released an investigative report on the CIA and NYPD"s joint spying operations on Muslim Americans in New York.

There are further concerns that law enforcement has targeted political activists using broad new powers of surveillance.