GPS-equipped cans of Coca-Cola are being used in a prize promotion by the soft drink company. The can has officials at some of the most secretive U.S. installations worried that the cans could be used to eavesdrop. Military bases are asking soldiers to examine their Coke cans before bringing them in to classified meetings. Paul Saffo compared the concern about the Coke cans to when the Central Intelligence Agency banned Furbies, the stuffed toys that could repeat phrases. Coca-Cola promotion prompts security measures | 
