TOKYO :Japan sees currency intervention as a possibility in dealing with excessively volatile and speculative moves in the yen, Finance Minister Satsuki Katayama said on Friday, in the strongest warning to date against recent falls in the currency. "We are alarmed by recent one-sided, sharp moves in the currency market," Katayama told a news conference, when asked about recent declines in the yen. "It is important for currency rates to move stably, reflecting fundamentals. We will take