At this point, 1 is too many. BP needs to fold it's hand and go home. The chips are down, we've called his bluff, and we've seen him for what he really is, an ignorant greed bag who hasn't a clue as to what he's doing. He made us think he had a full house, aces high, when all he really had was a handful of nothing.
Kick out BP and send in the Navy. Get a submarine to deploy a low energy H-bomb into the well at a sufficient depth over 2000 feet. Detonate remotely. The heat will turn the rock to molten lava and glass and it will cool rapidly forming a natural seal. Get on it now, because those relief wells won't work at all since the substructure has caved and failed. Call the NAVY now..........they have the skill.