Syria needs grow, rebel-held north out of reach: U.N.

Free Syrian Army fighters hold their weapons and take positions in preparation for what they say is an ambush against forces loyal to Syria's President Bashar al-Assad in Binnish in Idlib ProvinceGENEVA (Reuters) – The rebel-held north of Syria remains largely out of reach to aid operations, even though they have been stepped up elsewhere in the country torn by civil war, U.N. humanitarian chief Valerie Amos said on Tuesday. "We are watching a humanitarian tragedy unfold before our eyes," Amos told a news briefing. "We must do all we can to reassure the people that we care and that we will not let them down. …