Is synonymous which has a core subset on the Tornado Cash good contracts: the Tornado Cash pools. The overwhelming majority of these contracts are immutable. Which is, they have no ability to be up-to-date or removed by anyone. An entire listing of sanctioned, immutable Tornado Cash pools can be found https://nubkanmed.com/understanding-tornado-cash-the-future-of-private-transactions-in-the-copyright-world/