The controversial founder of Terraform Labs, Do Kwon, is at the center of the investigation, despite being believed to be hiding out in Serbia. The United States Justice Department is reportedly investigating the collapse of the TerraClassicUSD (USTC) stablecoin, which contributed to a $40 billion wipeout in the Terra ecosystem last May. Two agencies within the department — the Federal Bureau of Investigation and the U.S. Attorney’s Office for the Southern District of New York — have interrogated former staff at Terraform Labs in recent weeks, according to a March 13 The Wall Street Journal report.