US President Barack Obama signs the National Defense Authorization Act for Fiscal Year 2010 as US Defense Secretary Robert Gates (L) and members of the US Congress look on October 28, 2009 in the East Room of the White House in Washington, DC. Getty Images logo Getty Images 28 months ago

US President Barack Obama signs the National Defense Authorization Act for Fiscal Year 2010 as US Defense Secretary Robert Gates (L) and members of the US Congress look on October 28, 2009 in the East Room of the White House in Washington, DC.