News Summary: Police, politicians push for cameras

News Summary: Police and politicians push for more surveillance cameras after Boston bombings

MORE EYES: Police and politicians across the U.S. are pointing to the example of surveillance video used to help identify the Boston Marathon bombing suspects as a reason to get more electronic eyes on their streets.

COSTLY EXPANSION: The proliferation of cameras has helped catch lawbreakers, but plans to expand surveillance networks could run up against the millions of dollars it can cost to install and run the networks, experts say.

LOST PRIVACY: Some in law enforcement acknowledge that their plans may face Americans' traditional reluctance to give the government more law enforcement powers out of fear that they will live in a society where there is little privacy.