NEW : Halliburton says the government unfairly targets them . The disaster led to the worst maritime oil spill in U.S. history . The regulators were outmatched and underfunded , report says . Years of corruption and government complacency is cited .
NEW : Halliburton says the government unfairly targets them . The regulators were outmatched and underfunded , report says . Years of corruption and government complacency is cited .