Engineering a temporary fix

Hopes of containing the gushing oil in the Gulf of Mexico are pinned on a 40-foot-tall steel-framed box that will trap the oil, much like an upside-down bucket and deliver it to a surface ship. The containment dome that was being lowered into place Friday would be a temporary fix, catching up to 85 percent of the leaking oil until a relief well can seal the leaking well permanently.

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