A looming decision in Washington to block Nippon Steel’s merger with U.S. Steel on national security grounds is raising sharp questions in Tokyo. International Relations, Steel and Iron, Mergers, Acquisitions and Divestitures, United States Economy, Foreign Investments, Committee on Foreign Investment in the United States (CFIUS), Nippon Steel Corporation, United States Steel Corporation, United Steelworkers of America, Biden, Joseph R Jr, Japan, United States A looming decision in Washington to block Nippon Steel’s merger with U.S. Steel on national security grounds is raising sharp questions in Tokyo. NYT > Business