Oh, and Dima is actually perturbed over the prospect of his son's visa being revoked in America.

Well, why are all the children of the Russian elites studying and living in the rotten West? What's so bad about the schools and cities in their supposedly so glorious Russia that forces them to such desperate measures?

What's with all their residences in London, while the British businessmen and politicians don't have any in Moscow? That's not quite an "exchange", is it?