This is not a joke, folks; it's from an official U.S. Government web site: Operation TIPS. Anyone who is at all familiar with the history of Germany in the 1930's may have an uncomfortable sense of deja vu.

To give a musical reference, check out Si Kahn's "Who's Watching the Man?" or, more to the point, Gilbert and Sullivan's I've Got a Little List. Any thoughts on who in your neighborhood your local truck driver or cabbie might consider suspicious? As Dave Barry says, I am not making this up. But I wish I were.

Aloha,
Mark