An "Iron Dome" short-range missile defence system is pictured near the northern Israeli city of Haifa on January 31, 2013. The Iron Dome defence missile system is designed to intercept and destroy incoming short-range rockets and artillery shells. Fearing that Syrian chemical weapons could fall into the hands of Islamist militants, Israel is taking diplomatic and military steps to prevent it, local media and a security source said. AFP PHOTO / JACK GUEZ