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The US is urging allies to ban networking products from countries without independent court systems, an approach intended to block China’s Huawei and ZTE from competing for new 5G networks in Europe and Asia.

Inside a low-rise building in a business park at Rock Hill, South Carolina, is a vision of the factory of the future. Several dozen machines are humming away, monitored from a glass-fronted control room by two people looking at computer screens. Some of the machines are the size of a car, others that of a microwave oven, but they all have

Using a 3D printer is like printing a letter; hit the print button on a computer screen and a digital file is sent to, say, an inkjet printer which deposits a layer of ink on the surface of a piece of paper to create an image in two dimensions. In 3D printing, however, the software takes a series of digital slices through a computer-aided design and