March 4, 2020

Dr. W. Ian Lipkin is an infectious disease expert at Columbia University who is fresh out of quarantine after traveling to China, where he was studying the coronavirus outbreak. The virus has now infected nearly 94,000 people around the world with more than 3,000 deaths. Lipkin sits down with Walter Isaacson to explain how the virus spreads and how people can avoid catching it.

"The Plot Against America," a new HBO series based on the novel by Philip Roth, re-imagines what the past would have looked like if Charles Lindbergh had won the presidential election of 1940 instead of President Roosevelt. Creator David Simon joins Christiane to explain the vision behind the series.