It's called the Crime Prevention Information Center -- CPIC for short. It uses high technology to monitor terror threats and to fight ordinary crime.
Chicago has thousands of surveillance cameras around the city and all of them can be accessed in this room. Video recorded here has been used to make arrests, and in some cases, investigators have even been able to view crimes as they happened.
"All the analysts here can immediately go to a camera, pull up information, provide information to detectives on the scene, which gives them one step ahead of where they would have been without having this investigative tool available," said Supt. Jody Weis, Chicago Police Dept.
Much of the financing for the system came from the Department for Homeland Security.