Every two years since 1990, at the start of each new Congress, [Government Accountability Office] scientists, actuaries and investigators have produced a "high risk list" of where the federal government mismanages its resources and taxpayer money. Over that 35-year span, more than three-quarters of a trillion dollars has been saved by implementing the GAO's recommendations. The 2025 list cites at least $150 billion in payment errors and fraud in each of the past seven years " chiefly in overpayments by Medicare, Medicaid, the unemployment insurance system and the Earned Income Tax Credit. And that $150 billion figure is no doubt vastly understated, given that agencies failed to report improper payments for at least nine "risk-susceptible" programs. The government's failure to collect all the taxes that it is owed was estimated to have cost more than $600 billion in the 2022 tax year alone, which underscores how absurd it is for Musk to cut the Internal Revenue Service workforce in half. The Defense Department ... is responsible for about half of discretionary spending. "There are many major acquisitions across the government, including DOD weapons systems, GAO boss Gene Dodaro [said]. "They're on the high list." Pentagon contracts and the ones the Energy Department signs regarding nuclear weapons, he added, "are consistently overrun, over budget and delays occur. And they don't deliver on the promises."