At a time when the White House is projecting the largest deficit in the nation's history, Uncle Sam is trying to recover billions of dollars in unpaid taxes from its own employees. Federal workers owe more than $3 billion in income taxes they failed to pay in 2008. According to Internal Revenue Service documents, 276,300 federal employees and retirees owe $3,042,200,000. The IRS tracks the voluntary compliance rate of federal employees and retirees each year, and each year feds come up short. The one bright spot in this year's report is that after several years of a steady increase, the...