Inside the Trump administration’s coronavirus response — and missed opportunities to contain COVID-19 before it was too late. Correspondent Martin Smith speaks with global health experts about warnings to the White House that went unheeded, including a health policy expert who said his 2019 study pointing to the threat of a pandemic was met with silence.

As he investigates how the crisis unfolded in the U.S., Smith finds: “There's a lot of unknowns as to who dropped the ball and when. It's clear that at the top, and I mean by that the president, the wrong messages were being given.”