Masked Palestinians smuggle cows into the Gaza through a tunnel that runs under the border between southern Gaza and Egypt, in the Rafah refugee camp on November 15, 2008, as Israel maintains a total lock down of impoverished Palestinian territories amid continuing violence. Palestinians say the tunnels are a lifeline for the territory, where the United Nations says more than half of residents live below the poverty line. (UPI Photo/Ismael Mohamad)