The Los Angeles Times (6/24, Hamburger) reports a top Coast Guard official, Rear Adm. Kevin Cook, “told the House Education and Labor Committee on Wednesday that his agency would be investigating the command structure aboard the Deepwater Horizon to see if that played a role in the confusion surrounding the rig’s April 20 explosion in the Gulf of Mexico.” Cook said, “We do need to clarify who was in charge.” The Times adds Cook was “testifying with a panel of other government agency heads about safety issues facing oil and gas industry workers. An Interior Department official pledged at the hearing that the agency would issue new mandatory safety guidelines for oil rig and cleanup workers, dozens of whom have already reported illnesses.”