They say nothing can get done in Washington, D.C. on the issue of clean energy, which has become a political lightning rod over the last year. With Congress at a high watermark of partisanship, accusations abound on Capitol Hill that American energy efficiency and renewable energy technologies and the policies that support them are job killers and a money-wasting hoax on taxpayers. And yet, there's reason for optimism about energy innovation in this country. Why? Because the most powerful force in the world, the U.S. military, is mobilizing on a clean energy mission — and I believe they're going to win this war.