U.S. weapons makers, military bet on innovation as funds shrivel

Building missiles used to be back-breaking, strenuous work, and dangerous too, given the high level of explosives involved. But U.S. weapons maker Raytheon Co has revolutionized that process at a sprawling, classified facility in Huntsville, Alabama, where automated transporters ferry missile parts to gleaming assembly stations, and even tuck themselves away for charging when their batteries run low.

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