Japan may intervene in the currency markets on Friday to support the yen, according to a comparison of the Bank of Japan's current account data and estimates by money brokers. The comparison suggests that the scale of intervention may be around 2.14 trillion yen (13.50 billion dollars). The Bank of Japan predicted on Wednesday that its current account could decline by 2.74 trillion yen due to government fiscal factors. Private money brokers including Central Tanshi and Ueda Yagi Tanshi expect th...