May be I will say something obvious. But seriously, the only way I see for the manufacturing to stay in US is constant introducing new products. Products so high tech that other economies simply cannot compete, they do not have those technologies. To do so the investments in research and development have to be doubled or tripled. Unfortunately, these are on decline.
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Слaбый пол сильнее сильного, в силу слaбости сильного полa к слaбому