With Libra, both the transactions made and who made them will be recorded.
Marcus implied in his testimony that law enforcement could have access to that information when needed.
Companies that want to use the Libra network will have to comply with regulations around money laundering.
Facebook and the nonprofit group that will govern Libra, the Libra Association, will impose these rules.
That is something that can’t be forced on the bitcoin network, where there is no one party controlling access.
Facebook declined to comment beyond the testimony. The Libra Association also declined to comment.