© Reuters. Mark Karpeles, chief executive of Mt. Gox, bows at the start of a news conference at the Tokyo District Court in Tokyo TOKYO (Reuters) - Mark Karpeles, the former head of defunct bitcoin exchange Mt. Gox, was arrested on Saturday in connection with the disappearance of hundreds of millions of dollars worth of the virtual currency, Japanese media reports said. The French-born Karpeles, 30, is suspected of falsifying data on the outstanding balance... More