Several weeks ago, just as we were learning that a major oil spill was happening in the Gulf, I distinctly recall hearing a news story that explained that the reason that the now infamous blowout preventer failed to work was that it was built with two redundant control systems, but one of them had been disconnected and they let the batteries go dead in the other. In more recent weeks, we've heard lots of finger pointing and grandstanding and promises to get to the bottom of what happened, but I haven't heard any repeat mention of the specific, extreme negligence described in the earlier report. Was I hallucinating? Was that report discredited, or was it quietly forgotten because it's in some people's interest to have a big ongoing controversy about what went wrong?
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