Police Misconduct, Regenerative Farming, Women in White Coats

What does the historic conviction of police officer Derek Chauvin mean for the national debate over race and police violence? Next, why nurses are so much more likely to commit suicide than other career groups. Plus, how farming can cut down on carbon emissions. Also on today's show: why salt is about to turn into a global environmental crisis, the story of how female doctors revolutionized the world of medicine, and how Earth Day ushered in a new genre of storytelling. (Court TV via AP, Pool)