Paranoia Goes Better With Coke: "There's a new security threat at some of the nation's military bases -- and it looks uncannily like a can of Coke. Specially rigged Coke cans, part of a summer promotion, contain cell phones and global positioning chips. That has officials at some installations worried the cans could be used to eavesdrop, and they are instituting protective measures."
Let's turn this around. Pack a hidden gps-enabled transmitter in a beverage container and smuggle them onto military bases hidden among other cans of soda.
Wait a minute. The US Government (not to mention many corporations) have facilities that don't officially exist, aren't open to the public, and aren't shown on any map. Most of these handle highly classified material. In many, mere possession of a cell phone or gps locator could get you arrested, or worse. A bevy of coke-heads converging on a covert location to offer some PFC a prize might just as easily get themselves shot.
It's a clever gimick, but also a security risk.