Paolo Ardoino, chief executive of Tether, said at DC Fintech Week on Tuesday that the US was expected to catch up on cryptocurrency regulation. "Nowhere can compare to the US," he said. "I think it's very, very important to have sensible cryptocurrency regulations and stablecoin regulations in place to protect end users." He predicted that would happen in the US. "We are buying a lot of US debt and the most important job for a stablecoin issuer is to be able to liquidate the reserves and pay everyone back on redemption," Mr. Ardoino said.