A crack and oil leak have been found underneath a running shinkansen bullet train in the first "serious incident" affecting the Japanese high-speed train system since the transport ministry's accident investigation commission was launched in 2001.Believing that the trouble could have led to a high-speed derailment, the Japan Transport Safety Board on Wednesday conducted a hearing with officials of West Japan Railway Co., operator of the troubled bullet train, among others.According to JR West, the crew of the Nozomi No. 34 bound for Tokyo noticed on Monday afternoon a burning smell when the…READ FULL ARTICLE