VIDEO- A test of the Patriot PAC-3 type missile system, which Israel is supposed to receive from the US according to various reports, was presented during a conference of the Jerusalem Center for Public and State Affairs, and the Israeli Missile Defense Organization. The new system, which comes with 16 launching barrel, forms a significant improvement in its ability to deal with ballistic missiles, when compared to the current system which has just four barrels. The Patriot system is designed to act as a second defensive layer, in case the Arrow anti-ballistic missile (ABM) fails to strike its target. According to various reports, the cost of the new Patriot missile type stands at around four million dollars. During the conference, economic, political, and security aspects linked with the development and deployment of ABM systems were examined, and successful tests of the Arrow 2 system, which just recently was also tested in Israel, were displayed. Former Air Force Commander Major General (Res.) David Ivri said that the decision not to develop the laser systems was a mistake. "Israel made a serious mistake when it ended the development of active defensive systems and we are now paying a high strategic and diplomatic price," Ivri said. Ivri serves as president of Boeing in Israel, and directed his comments at the Nautilius system, whose development was stopped. "Today's defense systems are inadequate. We must develop the laser systems and not rely on ABM systems," he said. "The laser won't give a 100 percent answer, but we must find a solution to a situation where there is an area in which there are thousands of missiles. As a military man I always prefer to give a preemptive strike. But, we must remember that we are part of the nations of the world, and as part of the global nation, the issue of the preemptive strike becomes much more difficult because it brings with it responses," Ivri added.