You can't stop the signal...

Wired News: Hackers Rebel Against Spy Cams:

"When the Austrian government passed a law this year allowing police to install closed-circuit surveillance cameras in public spaces without a court order, the Austrian civil liberties group Quintessenz vowed to watch the watchers.

Members of the organization worked out a way to intercept the camera images with an inexpensive, 1-GHz satellite receiver. The signal could then be descrambled using hardware designed to enhance copy-protected video as it's transferred from DVD to VHS tape.

The Quintessenz activists then began figuring out how to blind the cameras with balloons, lasers and infrared devices.

And, just for fun, the group created an anonymous surveillance system that uses face-recognition software to place a black stripe over the eyes of people whose images are recorded.

...Dutch journalist Brenno de Winter warned that the European Parliament's support for data retention doesn't ensure security, and makes citizens vulnerable to automated traffic analysis of who communicates with whom through phone calls and internet connections. "What we have seen is a system that fails because we miss out on too much information, and even if we have all that information, it doesn't give us the right information and it is easy to circumvent," said de Winter.

CCC member and security researcher Frank Rieger said hackers should provide secure communications for political and social movements and encourage the widespread use of anonymity technologies. He said people on the other side of the camera need to be laughed at and shamed.

"It must not be cool anymore to have access to this data," said Rieger, who argued that Western societies are becoming democratically legitimized police states ruled by an unaccountable elite. "We have enough technical knowledge to turn this around; let's expose them in public, publish everything we know about them and let them know how it feels to be under surveillance.""