Israel has completed testing its Iron Dome anti-rocket system, and has bought seven batteries, to be delivered over the next two years. Each battery has radar and control equipment, and four missile launchers. The first battery will be delivered within six months. Based on how that one does, another will be installed on the Lebanese border next year. Each battery costs about $37 million, which includes over fifty missiles. During tests, the system detected and shot down BM-21 and Kassam rockets. The manufacturer, Rafael, was offered a large bonus if they got the system working ahead of schedule. When Iron...