According to a new Government Accountability Office audit, the military lacks proper safeguards to ensure that spending on politically fashionable green energy isn’t wasted. I am not shocked. After all, taxpayer investments in renewable energy are inherently wasteful, for reasons that I explain here and here. And military spending is mythically wasteful: It’s commonly held urban legend that Army screws cost $10 each. Together (investment in politically-favored energy sources + the military’s tendency to spend big), the only question is whether they engender a greater degree of waste than their mere sum would suggest. This GAO report indicates that such a synergy does indeed accelerate the flow of taxpayer money down the drain.