On tonight’s program: After failing to get their proposal on the 2020 ballot, advocates are once again collecting signatures to put before voters a move to legalize recreational marijuana use in Florida; A Florida doctor shares his experience treating COVID-19 patients; Today, misinformation seems to be everywhere. A university initiative arms students with the tools to help them spot it; The new director of the National Aeronautics and Space Administration, who used to be an astronaut himself, talks of future spaceflights while recalling the U-S space program’s past glories; Scientists are learning lots more about how coral reefs protect coastal areas from storms; And environmental groups cheer a plan to cut down on Styrofoam use in Florida.