Palestinians work to recycle cement at a factory east of Gaza City, Sunday, Nov. 8, 2009. Due to the Israeli blockade, cement is scare in Gaza and shipments that come from Egypt through the tunnels are very expensive. As a result, many cement factories take rubble from destroyed houses and pulverize it in order to make new cement blocks. AP Photo logo AP Photo 1 week ago

Palestinians work to recycle cement at a factory east of Gaza City, Sunday, Nov. 8, 2009. Due to the Israeli blockade, cement is scare in Gaza and shipments that come from Egypt through the tunnels are very expensive. As a result, many cement factories take rubble from destroyed houses and pulverize it in order to make new cement blocks.