Engineers don't expect to see another gusher when they delicately remove a cap on the blown-out Gulf of Mexico well that spawned the worst offshore oil spill in U.S. history.
The planned removal of the cap Thursday is a prelude to raising the massive blowout preventer that failed to prevent the disaster.
But the government wasn't offering a guarantee no more oil would leak. Plans were being made for oil collection vessels to be on standby in case of a problem. Officials have been waiting for rough seas at the site to calm down before continuing with the removal of the blowout preventer.
They plan to begin removing the cap around midday.
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