In its mounting campaign against leakers, the U.S. government isn't just going after officials who revealed weighty secrets like the White House's drone strike "kill list." Federal agents are also chasing a leaker who gave us an official document asking for a futuristic laser weapon that could set insurgents' clothes on fire from nine miles away. It's an odd investigation, because the energy weapon doesn't exist; the unclassified document describing it reads almost like a spoof of the laser system out of Real Genius; and this is 2012 -- nearly five years after the leak in question.