WASHINGTON - NOVEMBER 06: A flag on the Russell Senate Office building flies at half staff on November 6, 2009 in Washington, DC. President Barack Obama ordered all flags on federal office buildings be lowered to half staff to honor those killed during yesterday's shooting at Ft. Hood. Getty Images logo Getty Images 2 weeks ago

WASHINGTON - NOVEMBER 06: A flag on the Russell Senate Office building flies at half staff on November 6, 2009 in Washington, DC. President Barack Obama ordered all flags on federal office buildings be lowered to half staff to honor those killed during yesterday's shooting at Ft. Hood.