Overview: 2011/12/23 Headlines: Bradley Manning Pretrial Hearing Concludes; Boehner Relents on Tax Cut Deal, Pushes Keystone; 40 Killed in Damascus Suicide Attack; Egyptians Rally in Tahrir Against Military Rule; Pakistan Rejects U.S. Probe of Deadly NATO Bombing; U.S., Russia Spar over Probe of Libyan Civilian Deaths; Massive Shell Oil Spill Approaches Nigerian Coast; Federal Judge Blocks Key Provisions in South Carolina Anti-Immigrant Law; Thousands Take Part in California Nurses' Strike; Police Clear Occupy Camps in Albany, Berkeley; U.S. Asks Science Journals to Withhold Study Findings