US vaccine surplus grows by the day as expiration dates loom

Rhode Island Army National Guard Sgt. Juan Gomez looks over the post inoculation waiting area Thursday at a coronavirus mass-vaccination site in Cranston, R.I. (AP Photo/David Goldman)

In Tennessee and North Carolina, demand for the COVID-19 vaccine has slowed down so much that they have given millions of doses back to the federal government, even though less than half of their total populations are vaccinated.