Gulf catastrophe: I am not an engineer but I just wonder why there arent more stringent safeguards wrt offshore oil rigs. Surely, govts have time and again seen accidents that result in blow outs. Why dont they require oil companies to have redundant backup mechanisms to prevent a disaster as we are seeing? For instance why isnt this underwater pipeline segmented with shutoff valves for each segment so that any rupture could be isolated, as submarines and ships are also similarly safeguarded. Any oil industry person could answer these questions?
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