The New York Police Department has teamed up with Microsoft to launch a new citywide surveillance system to fight crime and terrorism.
The "Domain Awareness System" will use computers to organize information from thousands of cameras, radiation detectors, license plate readers, and crime reports, according to the New York Daily News.
Investigators will also be able to quickly get info on suspicious activities through live video feeds.
Some critics worry the new system could lead to "big brother" type surveillance.
Law enforcement will have access to about 3,000 television cameras stationed around New York City, and more cameras are planned.
The cameras are primarily located in the Financial district, midtown Manhattan, and high transportation areas like bridges and tunnels.