As debate over the takedown of Confederate monuments continues, Anderson Cooper examines why and when the statues went up in the first place. Lesley Stahl reports on a new type of farming -- with seaweed. Plus -- Scott Pelley introduces us to Alma Deutscher -- a 12 year old musician who is being called the "Second Mozart." Those stories on tonight's "60 Minutes." Learn more about your ad choices. Visit megaphone.fm/adchoices