CHICAGO (CBS) — Chicago’s vast network of surveillance cameras is about to get even bigger.

As WBBM Newsradio 780’s Bob Conway reports, the Chicago Sun-Times says the city’s Public Building Commission on Tuesday approved a plan to connect three high-profile Loop buildings to a network.

The cameras would be mounted on the Chicago Board of Trade, 141 W. Jackson Blvd., the Federal Reserve Building, 165 W. Quincy St., and the AT&T Franklin Switching Center, 311 W. Washington St.

LISTEN: Newsradio 780’s Bob Conway reports

They will be part of a system that transmits images from thousands of cameras to the city’s Office of Emergency Management and Communications.

So far, the Public Building Commission has put more than 3,300 cameras online in the citywide surveillance network, which includes more than 10,000 cameras controlled variously by the Chicago Public Schools, the Chicago Police Department, the Chicago Transit Authority and other organizations, the Sun-Times reported.

Officials say the three new locations were chosen in part because of their potential as possible terrorist targets.

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