The U.S. dollar fell sharply to the upper 155 yen range early Thursday in Tokyo after the U.S. Federal Reserve decided to hold interest rates steady, while another suspected yen-buying intervention by Japan also pushed the yen higher. The U.S. currency briefly sank to 153.00 yen from the upper 157 yen range overnight, in what some believe may have been caused by an additional market intervention by Japanese authorities to halt the yen's decline following an earlier suspected operation on Monday. At 9 a.m., the dollar fetched 155.69-70 yen compared with 154.55-65 yen in New York and 157.88-90 yen in Tokyo at 5 p.m. ... (full story)