Hospital workers taught "masterclass in humanity" during COVID-19 pandemic in New York City

Marie Brenner's new book, "The Desperate Hours: One Hospital's Fight to Save a City on the Pandemic's Front Lines," offers an inside look at the challenges health care workers faced when the COVID-19 pandemic began. Brenner spoke with CBS News' Anne-Marie Green and Vladimir Duthiers about the real stories and people that inspired her writing.