Members of the US House of Representatives Committee on Financial Services are worried about Facebooks Libra cryptocurrency. The Committee worries that Libra could compete with the US dollar and US monetary policy. Facebook wants to launch the cryptocurrency in the first half of next year. The cryptocurrency will start on a permissioned blockchain using a known list of organizations that can validate transactions, but Facebook seems set on relinquishing control within five years, creating a permissionless blockchain on which anyone can play.”]