File photo of U.S. President Barack Obama signing the Don't Ask, Don't Tell Repeal Act of 2010 in Washington

 
File photo of U.S. President Barack Obama signing the Don
REFILE - CORRECTING TYPO U.S. President Barack Obama signs the Don't Ask, Don't Tell Repeal Act of 2010 lifting the ban on homosexuals serving openly in the U.S. armed forces at the Department of the Interior in Washington, in this December 22, 2010 file photo. Obama administration lawyers will ask a federal appeals court on September 1, 2011 to vacate a judgment declaring "Don't Ask, Don't Tell" unconstitutional now that the ban on openly gay men and women in the military is about to be repealed. REUTERS/Jim Young/Files (UNITED STATES - Tags: POLITICS MILITARY SOCIETY)