I've got a family friend who is a backhoe operator in Baltimore. He was unfortunate enough to accidentally breach one of those pipes containing sensitive fiber

I've got a family friend who is a backhoe operator in Baltimore. He was unfortunate enough to accidentally breach one of those pipes containing sensitive fiber optics and was surrounded by DoD armed guards. Listening to him tell the story is pretty funny. This type of thing, but that is just from a very quick google: http://www.google.com/patents/US5218197 http://www.google.com/patents/US5218197