Part of President Obama's health care bill depends on the government telling doctors and hospitals what are purportedly the most efficient medical procedures they should use. Americans are supposed to trust Mr. Obama's bureaucrats over their own doctors. Meanwhile, a new report from the Government Accountability Office shows that the Obama administration has been an utter failure at identifying the efficiency of a wide range of products. As government encroaches on more aspects of American life, the federal bureaucracy is increasingly incompetent. The Environmental Protection Agency and the Department of Energy are charged with identifying how energy-efficient different products are....