US mortgage firm Freddie Mac headquarters is pictured in McLean, Virginia

 
US mortgage firm Freddie Mac headquarters is pictured in McLean, Virginia
U.S. mortgage firm Freddie Mac headquarters is pictured in McLean, Virginia July 13, 2008. U.S. Treasury Department officials are trying to make sure that Freddie Mac will be able sell $3 billion in securities this week at a previously scheduled sale, the Washington Post reported on Sunday. REUTERS/Larry Downing (UNITED STATES)