The Pentagon -- BP’s best friend?Photo courtesy of Wikipedia commons This essay was originally published on TomDispatch and is republished here with Tom's kind permission. Residents of Louisiana, Mississippi, Alabama, and Florida are livid with BP in the wake of the massive, never-ending oil spill in the Gulf of Mexico -- and Barack Obama says they ought to be. But there's one aspect of the BP story that most of those angry residents of the Gulf states aren't aware of. And the president hasn't had a thing to say about it. Even as the tar balls hit Gulf beaches, their tax …