I think you should do more research on the development of the iron dome project. The US only helped with funding in 2010. This is a great achievement in military DEFENSE. This technology is shared with the US and will one day protect US cities, military bases and other US interests globally. Sounds like a good investment to me.
Four Libyan soldiers said killed in battle with Islamists in Benghazi (Reuters)
from the article: Iron Dome makes world history intercepting nine Gaza rockets