Overview: 2012/02/21 Headlines: European Finance Chiefs Approve $172 Billion Greek Bailout; Yemen Holds "Election" in Deal to End Saleh's 33-Year Rule; Report: Israel to Release Palestinian Hunger Striker Khader Adnan; Afghans Protest Koran Burnings at U.S. Airbase at Bagram; 4 U.S. Soldiers Killed When Spy Plane Crashes in Djibouti; Spain: Police Criticized for Brutal Beating of Students; Obama to Host Israeli PM for Talks on Iran; Donors Pour $22 Million into Super PACs for Republican Candidates; Santorum Spokeswoman Attacks Obama's "Radical Islamic Policies"; Former IMF Chief Held, Questioned in Prostitution Inquiry; Syria: 12 Killed in Homs as Red Cross Pushes for Ceasefire; Senegal: 3 Dead as Pre-Election Protests Intensify; Canada Threatens Complaint over Tar Sands Labeling; Study: 94% of Oscar Voters Are White, 77% Are Male; 2011 Polk Awards Given to Shadid, Mayer, AP, Al Jazeera;$