When Pete Hegseth visited the Divergent factory in Torrance, Calif., earlier this month, he was supposed to take a quick, 30-minute tour of the facility. Instead, the Secretary of War stayed for more than two hours — captivated by the work Divergent is doing using state-of-the-art 3D printers to manufacture Tomahawk missiles, helicopter parts, luxury car chassis and much more, all under one roof. Products that used to take years to design and manufacture can be made by Divergent in just weeks. “