BP's Deepwater rig accident has recaptured the Environmental Protection Agency's attention regarding chemical-plant safety, bringing focus on hydrofluoric acid, an alkylation ingredient used in turning crude oil into gasoline that underwent a Bush-era review conducted by the Department of Homeland Security. "We're very concerned about giving the final word and authority to DHS" when requiring companies to change over to safer chemicals for security reasons, said Scott Jensen, a spokesman for the American Chemistry Council, conveying skepticism whether the agency can properly consider the costs of such a mandate for chemical firms.

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