NEW : An opposition group reports 19 people were killed a day . A ship carrying repaired attack helicopters for Syria is returning to U.S. . Since the uprising began in March 2011 , violence has killed more than 15,000 people in Syria , including 10,480 civilians , 3,715 soldiers and 830 defectors , according to the Syrian Observatory for Human Rights . The U.S. ambassador to U.S. threatens international prosecution of military members . Most in neighboring countries want Pew Research gone , Pew Research finds .
NEW : An opposition group reports 19 people were killed a day . A ship carrying repaired attack helicopters for Syria is returning to U.S. . The U.S. ambassador to U.S. threatens international prosecution of military members . Most in neighboring countries want Pew Research gone , Pew Research finds .