Newly-minted PBS News Hour White House Correspondent Yamiche Alcindor explains why the Stoneman Douglas students are revolutionizing the gun reform debate, the lovely Chenell tackles the existential threat of sea-level rise and global climate change with authors Ashley Dawson and Jeff Goodell, and not to be missed, a must-listen discussion with The Atlantic's Franklin Foer who warns us about how our insidious reliance on big technology is creating a World Without Mind.