Japan is closely watching currency movements and is ready to take all necessary steps, Finance Minister Shunichi Suzuki said Friday, amid market caution about intervention to slow the yen's depreciation as it hit a 34-year low against the U.S. dollar.The yen slipped to the 156 level against the dollar for the first time since 1990 in Tokyo later in the day, shortly after the Bank of Japan decided at its two-day policy meeting to maintain its key interest rate and government bond buying.Suzuki said he is "concerned" about the negative aspect of the weaker yen, while noting that it also has a…READ FULL ARTICLE