text:  We have a truck with water, bottled water right here. I saw a truck with watermelons. All different kinds of goods waiting to be brought in. About a fifth of trucks are also turned away every day. Aid officials and several logistics coordinators we spoke to said they blamed Israel for imposing vague guidelines on what's allowed in. Shimon Friedman works with COGAT, the Israeli military body responsible for overseeing the crossings.