Not that sneaky, minuscule GPS trackers are impossible to come by, but with kids growing more and more mischievous, outraged parents are demanding more options. At least that's the word passed on by Lightning GPS' Jason Lazarus, who has just recently decided to make its ridiculously small Spark Nano available to the public. You see, this here company has generally thrived on providing covert GPS trackers to military and law enforcement, but now even civilians are being allowed in on the fun. The device, which is obviously used to track whatever or