The COVID-19 pandemic has introduced millions of Americans to Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases. 'New Yorker' staff writer Michael Specter has known Fauci and covered his work for decades. Specter talks about Fauci's trail-blazing work during the AIDS epidemic, why Trump can't fire Fauci, and the structural changes and research that Specter says would make us more prepared for the next pandemic.