Japan’s top currency diplomat Masato Kanda said Friday that the Finance Ministry will take an “appropriate step” to address excessive movements of the yen. The comment by Kanda, vice finance minister for international affairs, comes after the U.S. Treasury Department said Thursday it has once again put Japan on a list of major trading partners it monitors for potentially manipulating its currency. The dollar approached the 159 yen line, its highest in nearly two months, early Friday in Tokyo trading.