What about .org, piratebay uses that right?
EDIT: This is wrong, see peteri's post.
.org is essentially the same as .com, owned by the US government and managed by Verisign.
So far the US has not publicly tried to drop wikileaks.org, forcing WikiLeaks migrate to a TLD that is clearly outside US reach. Maybe they wouldn't want the bad press.
I'm wondering what is possible if I simply have a relationship with a reseller in the US (e.g. the one with the superbowl ads, or eNom), but my TLD registrar is outside of reach. I assume they could make the reseller drop the contract, or terminate it.