2014/09/15 Headlines: U.S. Claims Arab League Role for Anti-ISIS Strikes; White House Cites Iraq War Resolution for ISIS Strikes; Islamic State Beheads U.K. Aid Worker in New Video; U.S. Triples Estimate of ISIS Fighters; Obama Met with Prominent Journalists Ahead of ISIS Speech; Syrian Gov't Airstrikes Reportedly Killed Dozens Outside Damascus; Israeli Intelligence Vets Refuse to Spy on Palestinians; Sweden Elects Center-Left Coalition in Anti-Austerity Vote; Far-Right Makes Gains; Prominent Egyptian Activist Freed on Bail; New NFL Abuse Claim Emerges as Commissioner Faces Calls to Resign; NFL Admits One-Third of Retired Players Suffer Cognitive Problems; Obama Admin Invokes State-Secrets Privilege to Dismiss Private Lawsuit; "Django Unchained" Actress Accuses LAPD of Racial Profiling; Cuba Sends Health Workers for Ebola Effort; Obama to Unveil U.S. Plan