This was a loaded question. The real one is how much money this will bring to the US. A successful real-life military test of an anti-missile system is the best ad for any weapon-selling company. And Israel is certainly the best place for that given the number of enemies and the frequency of wars. It is clear that the Iron Dome, if successful, will be a commercial hit, since there is no equivalent.
U.S. wildlife agency looking into Zimbabwe lion death (AP)
from the article: MESS Report / Iron Dome passes tests, but how much will it cost Israel?