[dmix]

ID'ing hasn't stopped stolen guns from being used by criminals, I highly doubt it will stop hackers from being able to use Bitcoin. Harder maybe. But there will be thousands of markets that exist outside of USA regulation (or black markets within the USA). Especially by the time the USA would be capable of implementing some sort of ID system.

There is also factoring in the complexity added to associating any form of ID to a particular coin, if CoinJoin or similar trustless anonymizing mixing services reach widespread adoption.

This is all assuming Bitcoin continues it's mainstream course.