BP contractors who cleaned up after the Deepwater Horizon explosion can't share the government's immunity from personal injury suits unless they prove they took direction from the government and not from BP, U.S. District Judge Carl Barbier ruled...He denied motions of contractors to dismiss claims that Corexit, a product they used to disperse oil, injured cleanup workers and Gulf Coast residents. Plaintiffs claim they suffered headaches, nausea, vomiting, respiratory problems, rashes, lesions, chemical burns and other effects. Barbier wrote that their master complaint alleges BP took control and directed all aspects of recovery and relief efforts...Cleanup defendants include Marine Spill Response Corporation, Airborne Support Inc., Lynden Air Cargo, Dynamic Aviation Group, International Air Reponse, Lane Aviation, National Response Corporation, O'Brien Response Management, The Modern Group, and DRC Emergency Services.