Cash is perhaps a little more traceable than cryptocurrency is since most ways it is passed around is in one way or another linked to the physical world and to

Cash is perhaps a little more traceable than cryptocurrency is since most ways it is passed around is in one way or another linked to the physical world and to your actual existence. You can however launder cryptocurrency without leaving your room and without ever being linked to any of that once you slowly bleed it out into cash. The only point at which your physical being comes close to anything traceable is once it's so white the NSA couldn't catch you. And frequently, they don't. Because as said before, it's an international issue. DPRK often does some money borrowing from the less tech-savvy users out in the west. That money goes into buying that government all kinds of stuff, both abroad and even for the actual physical country itself. Cuba dances around the US blockade with cryptocurrencies. Both of these are of supreme interest to national security agencies in the US. Yet none of them have managed to really get a proper hold on these operations.