How a new national emergency declaration could slow the spread of monkeypox

With more than 7,000 cases reported in the U.S, the Biden administration has declared monkeypox a public health emergency. The declaration announced Thursday comes after the administration endured weeks of criticism for its response to this outbreak. Dr. Jay Varma, director of the Cornell Center for Pandemic Prevention and Response at Weill Cornell Medicine, joins William Brangham to discuss.