Re: On the other hand...the corollary
A while back, a musical group (Dutch, IIRC) were awarded a successful copyright infringement ruling in the US, but they were not awarded any damages because their music was not registered for copyright in the US, despite this not being a requirement in their country (or any other country in the Berne Convention).
So in response to your question, I think "if and when it suits them" would be the most appropriate answer.
Biting the hand that feeds IT
