As New York City dedicates its AIDS Memorial in the park across from what was St. Vincent's Hospital where so many New Yorkers suffered and died from the disease, we're joined by David France, director of the Oscar-Nominated documentary "How to Survive a Plague," a contributing editor for New York Magazine and the author of How to Survive a Plague: The Inside Story of How Citizens and Science Tamed AIDS (Knopf, 2016), to talk about the "plague years" and how the city and the world responded.