LONDON — Microsoft said on Tuesday that it plans to invest $30 billion in artificial intelligence infrastructure in the U.K. by 2028.The investment includes $15 billion in capital expenditures and $15 billion in its U.K. operations, Microsoft said. The company said the investment would enable it to build the U.K.'s "largest supercomputer," with more than 23,000 advanced graphics processing units, in partnership with Nscale, a British cloud computing firm. The spending commitment comes as President Donald Tr ...