One of the issues is that the models used by these businesses are complex and are designed precisely to avoid sanctions regimes. They put up a trust, etc. There are all sorts of mechanisms people can use to make sure that the asset held by someone sanctioned is not actually sanctioned.
Certainly, we've seen cases brought in the United Kingdom by Russian oligarchs to get their assets unsanctioned or returned. As our legislation evolves, so too do the methods to circumvent it. I think one of the things that we'll need to do is to keep up with those methods that the individuals and the entities we seek to sanction use to avoid the sanctions once they're placed.