Watch thieves clone a Mercedes key from outside the owner's house, stealing his car in seconds

As long as automobiles have been around, there's been car theft. Auto manufacturers and car thieves have escalated an increasingly technological battle for decades, but thieves in the UK have been caught on camera pulling off the perfect con. Security cameras in Solihull, England, show a pair of car thieves using a "relay" device to impersonate the proximity signal from a Mercedes key inside the owner's house. The result is that the thieves can open a car, start it, and drive away -- all while t...