Michael Regan, head of the US Environmental Protection Agency (EPA), is leading federal efforts to address the aftermath of a train derailment in East Palestine, Ohio, which released plumes of black smoke and contaminated the soil and waterways. Regan has been meeting with residents and state officials, and the EPA has ordered Norfolk Southern to pay for all necessary cleanup. The EPA is also working with the Ohio EPA to ensure the environment is safe and the affected communities are taken care of.