2012/11/21 Headlines: Wave of Israeli Attacks Brings Palestinian Toll in Gaza to 139; Bus Attack in Israel Wounds 21; Clinton Visits West Bank; U.S. Blocks Resolution on Gaza Conflict; 3 Palestinian Journalists Killed as Israeli Attacks on Media Intensify; Militants Execute 6 Alleged Collaborators in Gaza; Gaza Toll Includes Up to 34 Palestinian Children; 23 Killed as Syria Planes Bombard Damascus Suburb; Report: Greenhouse Gas Emissions Reach Record High; M23 Rebels Capture Congolese City of Goma; U.N.: New AIDS Infections Down by Half in Poorest Countries; U.S. Joins Syria, Iran in Opposing Death Penalty Ban; Top Execs Face Bribery Charges as Murdoch Scandal Deepens; 4 U.S. Residents Arrested in Alleged Terror Plot; Undocumented Students Protest Kris Kobach for Anti-Immigrant Activities; 13-Year-Old Girl Fatally Shot on School Bus in Florida; Judge Denies Bail Request from Accused Stratfor Hacker Jeremy Hammond