President Obama and Discovery Channel announced today that the chief executive will appear on the Dec. 8 episode of Mythbusters. And surprisingly, the myth being busted has nothing to do with either Islam or Kenyan birth certificates. On the episode, Obama will ask Adam Savage and Jamie Hyneman to test whether it was possible for the Greek scientist Archimedes, as told in story, to have set fire to an invading fleet using a giant mirror and the reflected rays of the sun. Which forces me to ask: What the hell is the government secretly planning to do with a giant...