By Saqib Iqbal Ahmed NEW YORK (Reuters) -The U.S. dollar tumbled against the yen on Friday, logging its biggest daily drop against the Japanese currency in nearly three years as traders and strategists said Japanese authorities may be in the market to stem a slide in their battered currency. The yen rose as high as 144.8 per dollar in late morning U.S. trade. It pared gains to trade up about 2.2% at 147.055. “I think it’s intervention,” Karl Schamotta, chief market strategist, at Corpay in Toronto, said. “We are seeing lots of dollar selling and the yen moving almost vertically as shorts get s…