3D printing (additive manufacturing) isn't really a differentiating factor one way or the other. It's only economically viable for certain types of parts made i

3D printing (additive manufacturing) isn't really a differentiating factor one way or the other. It's only economically viable for certain types of parts made in relatively low volume. And the USA doesn't have much of a comparative advantage. There will never be anything like a "replicator". It's not physically possible.