Didn't File Returns
The IRS says active and retired federal government employees owe almost $3 billion in back taxes.
A report from a Washington radio station says more than 450,000 federal workers did not file income tax returns for 2005. 71 of those worked in the Executive Office of the President, which includes the White House.
The federal agency with the highest number of delinquent taxpayers is the postal service. The group with the best compliance rate is the Treasury Department — which includes the IRS.