Washington Post senior writer Frances Stead Sellers speaks with Leana Wen, emergency physician and professor of health policy and management at George Washington University, about rising cases of COVID-19, flu and RSV prompting fears about a potential “tripledemic.”

Immigration enforcement and the Department of Homeland Security reporter Nick Miroff speaks with Homeland Security Secretary Alejandro Mayorkas about the Biden administration’s efforts to curb the fentanyl epidemic and the challenges at the U.S.-Mexico border.