The IRS has been conducting audits without proper approval:
IRS employees made decisions to survey tax returns without proper approval. From a statistical sample of 311 surveyed tax returns, TIGTA determined that 246 required the Planning and Special Programs function to concur with the group manager’s decision to survey the tax return. However, group managers did not follow guidelines and surveyed 238 (97 percent) tax returns without approval from the Planning and Special Programs function.
97% is an awfully high rate of failure, even for the federal government.