A Israeli journalist is killed , the government says March 2011 . At least 150 people were killed across Daraa on Monday , opposition activists say . Obama calls the movement or use of chemical or biological weapons a `` red line '' Violence flares in Syria , where peaceful anti-regime protests started in Tuesday .
A Japanese journalist is killed , the government says Tuesday . At least 150 people were killed across Syria on Monday , opposition activists say . Obama calls the movement or use of chemical or biological weapons a `` red line '' Violence flares in Daraa , where peaceful anti-regime protests started in March 2011 .