The numbers are not adding up at Tajikistan’s signature infrastructure project, the Rogun Dam. An independent audit of the project’s financial statements has found a $540 million accounting gap and has determined that electricity-production operations at the work-in-progress facility are losing money. Controversy is nothing new for the Rogun project, which if completed to its maximum specifications would become the world’s tallest dam. Critics argue the dam is a white elephant in the making that threatens to upend a delicate regional…