You'll love this. The Fox channel in Washington D.C. became aware that photographers were being hassled by security in Union Station (the train station in Washington), so they dispatched a reporter and a crew to do a story on it. So they're interviewing the head spokesman for Amtrak, who is explaining that there aren't any laws or rules against photography inside the train station...when a security guard comes up and tells the TV crew they'll have to turn the cameras off.
Mike (Thanks to Al Patterson)
ADDENDUM: ...And Congresswoman Eleanor Holmes Norton's response. (Thanks to Kevin Bjorke)