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Yen breaks above 145/$ level in choppy trading, dollar firm

SINGAPORE : The yen was volatile on Monday after slipping to its lowest for the year against the dollar, breaching the key 145 level as traders warily looked for clues on possible intervention, while the dollar rose to touch a more than one month high. The Japanese yen weakened to as low as 145.22 per dollar in early Asian hours, its lowest since Nov.