LAS VEGAS--Showing off technology that James Bond would love, two researchers at Defcon on Friday demonstrated tools that allow people to eavesdrop on video conference calls and intercept surveillance camera video. An attacker needs to be in the same building as the victims to carry out the man-in-the-middle attacks over the network. The free UCSniff tool, available in Linux and Windows versions, offers a slick graphical user interface for sniffing video, said Jason Ostrom, director of the Viper Lab at Sipera Systems. The tool basically tricks the voice-over-IP network carrying the video into sending the data packets to the attacker's computer, he said.