Tony hayward, bp's chief executive when the Deepwater Horizon rig caught fire and sank in April 2010, famously remarked that, "To put it simply, there was a bad cement job." The report of the National Oil Spill Commission set up by Barack Obama to look into the loss of the rig and the subsequent massive oil spill, a portion of which was released on January 6th, differs subtly but crucially. The fundamental problem was not the dodgy cementing: it was bp's failure to exercise proper caution before relying on that cementing.
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