Plot: 2011/04/27 Headlines: Eight NATO Troops Killed by Afghan Air Force Pilot; Pakistan Discourages Afghan President from Partnering with United States; Panetta to be Next Defense Secretary, Gen. Petraeus to Head CIA; NATO Plans to Escalate Libya Strikes on Gaddafi Facilities; Russian Condemns NATO Attack of Gaddafi’s Compound; Syria Crackdown Continues as Government Deploys Thousands of Police, Tanks; Obama Meets With UAE Crown Prince Despite Human Rights Criticisms; Rep