You know, an iphone sold in the us or europe might be designed in california and built in india using semiconductors made in taiwan from raw materials provided by china. so if any link in that supply chain breaks, it sets up big problems for the rest of the chain. and that's true for smartphones, as it is for pcs, and especially in battery production for those electric vehicles we're buying more and more of. so what if one country decides to make it harderfor others to get hold of some of those critical raw materials? well, that's what china announced just last month. translation: the chinese ...