Two people have been arrested on suspicion of using stolen credit card details to buy and resell shinkansen bullet train tickets, Tokyo police said Thursday, in what may be a broader fraud operation. Fraudulent ticket purchases via the JR Central website since January have hit 870 million yen ($5.7 million), and the two are believed to be behind some of those transactions, according to the police. Liu Hu, a 33-year-old Chinese national, and Vu Thi Chinh, a 28-year-old from Vietnam, both residents of Kawaguchi, north of Tokyo, were arrested on suspicion of the unauthorized creation of electroma…