Rear Adm. Jo-Ann Burdian, Assistant Commandant for Response Policy, discusses the purpose of the Coast Guard's new Great Lakes Center of Expertise at Lake Superior State University Aug. 24, 2022. The center, which will research freshwater oil spills and help develop effective responses, is headquartered in Sault Ste. Marie with an additional office in Ann Arbor. U.S. Coast Guard photo by Chief Petty Officer John Masson.