The fact that accidents happen =/= no reason to try to stop accidents from happening

BP and federal regulators (Those guys at the Minerals Management Service. You know, the ones who were also sleeping with the people they regulated?) knew about problems at the Deepwater Horizon site as far back as June of 2009. Despite problems, BP still sought—and received—dispensations to operate outside of ostensibly mandatory safety regulations. We've got a name for this kind of behavior: Criminal negligence.