Japanese currency sinks to 160.17 per dollar, the lowest since April 1990. The Japanese yen has slumped to a 34-year low against the United States dollar. The yen on Monday sank to 160.17 per dollar, the lowest since April 1990, prompting speculation that Japanese authorities would intervene to prop up the currency for the first time since late 2022. The yen has been on a continual slide since...