What it’s like to transition into the White House during a national crisis. Also, why the six-foot rule for avoiding COVID-19 isn’t always the best guideline. Then, should someone be held legally responsible for a volcanic eruption that killed 22 tourists last year? And on the show, how the US Army is training dogs to detect COVID-19, the mold that makes food taste better, and how researchers in Australia have figured out how to make diamonds in minutes–at room temperature.