2011/08/31 Headlines: Evacuations, Airlifts Continue in Irene's Aftermath; Insurers Could Avoid Bulk of Irene Costs; Study: 25 CEOs Earned More than Companies Paid in Taxes; Wage Gap Increases; Obama Defends Economy Handling, Cites MLK on "Economic Justice"; ATF Director Demoted over Fast and Furious Gun Sting; Libyan Rebels Give Gaddafi Fighters Saturday Deadline; Amnesty: Black Libyans, Sub-Saharan Africans at Risk in Libya; Syrian Forces Kill Protesters in Daraa; More Arrests in Keystone XL Pipeline Protest Outside White House; Exxon, Russia Reach Deal for Arctic Oil; Kansas Ordered to Resume Planned Parenthood Funding; Judge Blocks Texas Law Requiring Pregnant Women to View Sonogram Before Abortion; Bolivian Commanders Convicted for 2003 Massacre; WikiLeaks Site Hacked as Names Reportedly Disclosed