Japan on Tuesday ramped up its verbal warnings against the rapid pace of the yen's fall to a fresh 20-year low against the U.S. dollar, as concerns have grown at home about its blow to the economy.Shortly after the yen slid past the 128 line, Japan's top government spokesman Hirokazu Matsuno said the government is monitoring developments in the currency market, including the yen's depreciation, and their impact on the economy "with a sense of vigilance."The yen saw its value decline by over 1 yen on Tuesday, even as Finance Minister Shunichi Suzuki weighed in earlier in the day, terming the…READ FULL ARTICLE