When Texas Instruments announced a $60 billion manufacturing megaproject in July, it was a bold bet that companies would want to mass produce foundational microchips on U.S. soil. In August, Apple vowed to do just that.During the same Oval Office press conference where President Donald Trump announced a 100% tariff on chips from companies not manufacturing in the U.S., Apple CEO Tim Cook upped his companies' U.S. spending commitment to $600 billion over the next four years, up from an original $...