NEW : The UN reports 78 deaths , most in Idlib . Monday 's violence may be worst of the uprising to date . The call to execute terrorists is a major threat against Syria . The Arab League expelled Syria over its crackdown . The United Nations estimates that about 5,000 have died in Syrian violence this year .
NEW : The UN reports 78 deaths , most in Idlib . Monday 's violence may be worst of the uprising to date . The call to execute terrorists is a major threat against Syria . The United Nations estimates that about 5,000 have died in Syrian violence this year .