Fox News: The U.S. Postal Service, having lost 29 percent of its first-class mail volume in the last decade, will slow its delivery service beginning next spring -- the first time in 40 years -- in an effort to eliminate nearly $3 billion in costs for the cash-strapped agency. "We have to do this in order for the Postal Service to become financially viable," said David E. Williams, vice president of network operations for USPS, who noted Monday that the organization expects to have a $14 billion debt this year.