The thought occurred to me when I read that:
A brief announcement on the Kremlin website said the president,Vladimir Putin, signed the citizenship grant on Thursday.
Depardieu is angered by François Hollande's attempt to raise taxes on the mega-rich to 75%. Russia has a flat income tax of 13%.
I'm guessing that wouldn't work here in the US, but a 13% flat rate sure would make it worth checking out.