We'll Tell You What the Law Is After You Break It

There's no sign telling you not to take a photograph that might include the building at 3701 N. Fairfax Drive in Arlington, Virginia. But if you do, expect to be stopped by a police officer, have your personal information recorded and be told to delete the photo from your camera. That's just what happened to Keith McCammon, who later found out the building houses the federal Defense Advanced Research Projects Agency. In fact, the government apparently has a list of buildings that, for security reasons, it won't allow people to photograph. But, citing security concerns, it refuses to release the list or warn people in advance they can't photograph the buildings.