[vetinari]

It's not that simple.

You want to arrest all assets of powerful Russians offshore? I hope you are ready to face pissed off Shell or Mitsubishi CEOs, after their assets in Russia are arrested too.

In addition, you would be playing how Russian government want you: they told their oligarchs last year, that the time to repatriate everything is now (2015). You would be awarding those who listened to that advice and penalize those who didn't. What could possibly go wrong? ;)

[readhn]

of course its not that simple. simply because this is how corruption operates in the west as well. they use similar channels and ways to hide/legitimize questionable profits.