 It threatens it diplomatically, militarily, and economically. The report that we just released from the CNA Military Advisory Board focuses on the economic threat. We are spending way too much money for our fossil fuel-based energy sources. We need to shift off of that, move towards a clean energy economy, and militarily that's going to have tremendous benefit. It'll improve mission effectiveness by reducing the tether that we have to tie ourselves to for fossil fuel. The Department of Defense can spur the transition of clean energy in a couple of ways. First of all, by doing research, development, deployment, and demonstration of clean energy technology that will directly affect, in a positive way, mission effectiveness. The second thing, DOD is a huge consumer of energy, and by shifting to cleaner sources of energy by using more energy efficiency technology for vehicles, for installations, buildings, and all of military training and operations, it can be a tremendously strong market signal for the clean energy industry, which is just starting up in the United States.