Officers use "StingRays" to mimic a cell phone tower and intercept information from phones in a whole neighborhood. Versions of the devices have been around for years, but the federal government and local police have kept them under wraps.
The North Carolina coast may be the last place you'd think to find a sunken German submarine from World War II. But that's what Joe Hoyt — a nautical archeologist — found on a recent expedition to the ocean floor. Robert Siegel talks to him about the underwater battle site there.