The Japanese yen slumped to the 130 range against the dollar on Thursday for the first time since April 2002, after the Bank of Japan maintained its ultraeasy monetary policy at its board meeting in sharp contrast to the U.S. central bank that has raised interest rates.The yen was trading in the upper 130 range in the afternoon in Tokyo, plunging from the lower 128 zone quoted in the morning after the BOJ underlined its resolve to keep rates at rock-bottom levels.The Japanese currency's freefall was unabated in London later in the day, briefly hitting the 131 level for the first time in 20 …READ FULL ARTICLE