U.S. stocks sink as AI concerns weigh on tech sector

NEW YORK, Dec. 12 (Xinhua) -- U.S. stocks finished lower on Friday, with technology shares extending sharp declines amid renewed investor concerns over potential over-investment in artificial intelligence (AI). The Dow Jones Industrial Average dropped 245.96 points, or 0.51 percent, to 48,458.05. The S&P 500 sank...