in the recent escalation. >> only 55 out of the 1,500 ended up falling. >> the u.s. taxpayers invested $275 million to help israel build and seal the iron dome which can stop incoming rockets within a 2.5-mile to 44-mile range. israel outgoing defense minister gave panetta a model as a token of gratitude. >> small iron dome. >> but the u.s. army want mrs. than a model. it wants its own antimissile system. and congress would like a favorable discount given what the u.s. has already invested in the system. >> but instead of buying from israelis who already have technology, the army may decide to start from scratch. with a u.s. con tacker. system called ai-3 to take hundreds of millions of