I just peeked on wikipedia. Looks like a kind of geo caching
  game.yeah - I mean the agencies do that kind of stuff sometimes
  'cause they know there's raw talent out there... and they wanna
  know where the smart ppl live. I guess that's their job, so it's
  cool. I think you're safe. You can always just pretend to be
  holding back knowledge because it's important not to give away
  *everything* you know. Man, I want one of those. I just wish
  they didn't use a modified sonic screwdriver for it. The Doctor
  was -pissed off- - that's why it changed styles. Freakin' men in
  black.