If he did indeed assist the BP at their request, then he's acting as an agent of the Federal Gov't and is not acting outside the law.
There's something about this that doesn't pass the sniff test.
The FBI in Phoenix has been waiting forever to find something they can pin on Roger to take him down. I wonder who he pi$$ed off? /rhetoric
He said that he received a call from a reliable source. Who knows what that could be, it might just be someone yankin Roger's chain.
I wonder who he pi$$ed off? Bush. This is probably a personal request from Fox; "Ju don't get no oil, Whore-Hay, unless you take down that impudent subject of yours, who keeps interfering con mi companeros on their way to Wendy Gramm's meat plants".
All cutesy comments like that aside, I believe this is absolutely true. The Mexican government has been simmering for a long time about Barnett. If they could kill him, they would. But that would be too obvious, so they just want him neutralized.