Secrets and signsPatches for classified missions can sometimes provide otherwise-unavailable insights into the nature of those missions by Dwayne A. Day and Roger Guillemette Monday, January 7, 2008 One of the biggest movies currently in theaters is National Treasure: Book of Secrets. Like its predecessor, the movie is a lot of silliness and ’splosions, a nonstop chase as the hero travels around the world to decipher clues leading to a city of gold underneath Mount Rushmore. Much of the plot hinges upon the Freemasons, a secretive society that has left symbols with mysterious meanings, and that some people believe actually...