2015/02/11 Headlines: Obama to Seek Expansive War Powers Measure for Anti-ISIS Campaign; Report: U.S. Mulls New Delay of Afghan Drawdown; Family Confirms Death of U.S. Aid Worker Kayla Mueller in Syria; Obama Urges Putin to Accept Ukraine Peace Deal as Violence Peaks; U.S. Closes Yemen Embassy & Removes Staff Amid Political Upheaval; Suspect Charged for Fatal Shooting of 3 Muslim Students in North Carolina; Grand Jury Indicts NYPD Officer for Killing of Akai Gurley; NBC News Suspends Brian Williams for 6 Months over False Iraq Claim; Jon Stewart to Step Down as "Daily Show" Host