A Palestinian man stands behind a a metal grate used to sift rubble at a factory that makes recycled cement, 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

A Palestinian man stands behind a a metal grate used to sift rubble at a factory that makes recycled cement, 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.