This week hosts Mark Masselli and Margaret Flinter speak with Dr. Benjamin Sommers, health economist, physician and professor at the Department of Health Policy and Management at the Harvard T.H. Chan School of Public Health. Dr. Sommers discusses his ongoing research on the impact of increased health coverage under the Affordable Care Act which has fostered improved access to care for 20 million newly insured Americans, as well as the need for modifications to the ACA to expand that access and improve efforts to contain costs of care.