"A top BP worker who was aboard the Deepwater Horizon in the hours leading up to the explosion declined to testify in front of a federal panel investigating the deadly oil rig blowout, telling the U.S Coast Guard he was invoking his constitutional right to avoid self-incrimination.
The move Wednesday by BP's Robert Kaluza raises the possibility of criminal liability in the April 20 explosion that killed 11 and five weeks later continues to spew hundreds of thousands of gallons of oil into the Gulf of Mexico each day.
Wednesday's government hearing in Louisiana, however, failed to determine why — despite unusual pressure and fluid readings on the rig — a BP official decided on the day of the explosion to proceed with removing heavy drilling fluid from the well and replacing it with lighter-weight seawater that was unable to prevent gas from surging to the surface and exploding."
Erika Bolstad, Joseph Goodman, and Marisa Taylor report for McClatchy Newspapers July 20, 2010.
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