Money laundering was already against the law. The whole premise of this 10K limit is that it will somehow stop money laundering. The way I see it, at best it creates some hassle.
The hassle is quite important as 1) It limits the business models it can be done through and 2) It means the business models you can still launder it through are much more noticeable.
It's easy to launder $2 million selling gold bars. It's much harder to launder $2 million through a car wash without red flags showing.
