Chris Sullivan's Chokepoint - Motorcycle safety // Pamela Falk on the flooding of Ukrainian towns surrounding a demolished dam // Scott McFarlane on the contentious GOP race // Dr. Celine Gounder on the health implications of wildfire smoke // Dose of Kindness -- Mothers in Wisconsin take daycare into their own hands // Gee Scott on the failing of Seattle's City Council // Micki Gamez with the story of a teenager in China who spent $64,000 on mobile game transactions