Just to finish off that comment about the security integrity, that's why on the flip side you would need a robust oversight. If individuals, organizations, or enterprises are using Bitcoin technology for something that we would not want them to use it for, whether it's terrorist financing, say, or money laundering and so forth, you would need the authorities to have the proper tools, oversight, and robustness within the system to be able to obtain the data they would need to use or to look at the transaction. That's what I would argue for: to have that robust oversight and regulatory oversight for that system.
On March 19th, 2018. See this statement in context.