The original content of Democracy Now! Headlines appears under the Creative Commons BY-NC-ND 3.0 License (United States). For more, including their other shows and media, visit www.democracynow.org. December 27, 2010 Investigators: Involvement of Companies Undermining Oil Spill Probe -------------------------------------------------------------------- Federal investigators are warning that the participation of companies involved in the Gulf Coast oil disaster is compromising a government probe. The chair of the Chemical Safety and Hazard Investigation Board, Rafael Moure-Eraso, criticized a decision allowing firms to take part in examining the blowout preventer that failed to stop the oil rig's explosion. In a letter of protest issued last week, Moure-Eraso writes that the companies' involvement has "seriously undermined the credibility of the testing" and "jeopardizes the public's trust in the examination process." .