President Joe Biden said he wants U.S. Steel to remain domestically owned, signaling opposition to the company's $14.9 billion acquisition by Japanese rival Nippon Steel.Federal regulators and the president have the ability to block foreign acquisition of U.S. companies, though that power is rarely used.Biden has often aligned himself with labor unions, who have also opposed the acquisition. The chances of America’s second-largest steel company being bought by a Japanese conglomerate took a hit Thursday aft ...