This is a LONG...uh...MESSY...story...sorry for the pun there...
What truly confuses me on this is the lack of ACTUAL information.
There are only two camps on this:
1) The BP-US gomint Axis of Oil Greed story line "we got everything under control, things are fine..."
2) The conspiracy nuts and doomsday prophets "The sky is falling."
I think there's no question the US gomint under ANY administration has been giving BP a reach around for decades...but what does this mean for the rest of us?
IMHO, this is a 9/11 class event....a massive terrible thing the gomint will use to prod the people into another round of very damaging legislation to strip away even MORE of that pesky Constitution thing. Just like 9/11 they'll use it drive the knee jerk reaction and ram rod through new crazy shit.
Did our gomint actually help CAUSE this on purpose?

My opinion on this will probably be somewhat unpopular...
NO! And neither did they cause 9/11!
The only reason I think this: They aren't smart enough to pull off shit on this scale. You're talking about a governing body that has sent NASA on a mission to make the Muslim world feel better about itself. Oh, now the gomint LOVES wild eyed conspiracy nuts who put the fear of the gomint into the people!
So what the ultimate impact of all this?
Well, Oblama and pals gonna ram through new taxes, new laws, strip away more of your rights...nothing new on the agenda there, just a massive disaster to spur action...
The gulf coast will essentially die off. Massive lost jobs, income, revenue from fishing, etc. But that's OK, Oblama and pals got plenty of other tax payers out there to squeeze to make up for it.
BP will get a government bailout, it's only fair.
The habitat of the gulf will recover...probably give rise to a few new species and a couple of killer viruses that we'll all be told to panic over, rush out and get vaccinated for (can you say SWINE FLU??)...but that's a conspiracy theory for another day...
And WE get to foot the bill for the whole thing, through higher taxes and fewer freedoms. The idea is the same as always, load such an inedible burden on the people they haven't got the RESOURCES with which to stand up and fight...