2015/04/01 Headlines: Former Military Ruler Wins Presidency in Historic Nigerian Vote; Iran Nuclear Talks Continue after Negotiators Extend Deadline; U.N. Warns of Yemen's "Total Collapse" as Toll Grows; Apparent Saudi Strike Kills 23; Iraq Claims Control of Central Tikrit; Hundreds of ISIS Fighters Remain; Obama Admin Lifts Post-Coup Freeze on Military Aid to Egypt; Palestinian Membership in International Criminal Court Takes Effect; Backlash Prompts Indiana to "Correct" Anti-LGBT Law; Arkansas Set to Enact its Own; Obama Commutes Prison Sentences of 22 Drug Offenders; Critics: New U.S. Climate Pledges "Disguise Weak Reductions"; Syracuse University to Divest from Fossil Fuel Holdings