If they block funds, that'll essentially blacklist the address from doing transactions, so it might be possible to launder it through legitimate services (other

If they block funds, that'll essentially blacklist the address from doing transactions, so it might be possible to launder it through legitimate services (otherwise Facebook blocks an entire exchange's wallet from moving Libra, thus making that exchange halt and catch fire). What you'd need is a service that allows you to convert from Libra to an item/currency and then back to Libra, ideally with the ability to trade the intermediate item between users. This heads off into the unexplored territory. I don't think anyone knows how they're going to handle legit services that launder Libra on the side.