Israel is one step closer to producing the most advanced air-to-air missile in history, according to Rafael, the government-owned Israel Armament Development Authority. Its Python-5 has recently passed "significant milestones" in testing and will be ready for operation by 2005. Together with the American manufacturer Lockheed Martin, Rafael currently produces the Python-4, a 1990s-era heat-seeking missile that effectively gives the attacking pilot a lethal gaze: anything he sees from his cockpit, he can shoot down. But the Python-5 promises, in addition to sharper target recognition electronics, a "full attack envelope" - meaning the pilot can destroy aircraft on his tail...