Doubts emerge over plan to end Syria hostilities within week

World powers on Friday agreed an ambitious plan to cease hostilities in war-racked Syria, but the Munich deal left out the Islamic State group and Al-Qaeda's local branch, leaving analysts to doubt its viability. The 17 countries agreed "to implement a nationwide cessation of hostilities to begin in a target of one week's time," said US Secretary of State John Kerry after extended talks co-hosted by Russian Foreign Minister Sergei Lavrov. The International Syria Support Group also agreed that "s