Four months after the Deepwater Horizon spill — which President Obama called the “worst environmental disaster America has ever faced” — the oil is disappearing, and fisheries are returning to normal. It turns out that this incident exposed some things that are seriously wrong in the world of oil — and I don’t mean exploding wells. There was a broad-based failure on the part of the media, the science establishment, and the federal bureaucracy. With the nation and its leaders looking for facts, we got instead a massive plume of apocalyptic mythology and threats of Armageddon. In the Gulf, this …