I Public Radio International I m Ira Flatow and this is Science Friday. Wildfires have scorched 8 and a half 1000000 acres of land this here in the u.s. And this hour we ll look at what s fueling the fires and what role humans play in fanning these flames Plus they live in caves and light up the darkness like stars but how are we stunts that. No one. Takes it makes the call when it started out as a lark and then became serious the scientists working to uncover the secret chemistry of the Glow worm and how could a quick and easy test to detect malaria possibly have a downside the answer in your questions after the break so stay with us. Live from n.p.r. News in Washington I m Lakshmi saying the diplomatic route between the u.s. And North Korean government says getting personal North Korean leader Kim Jong un called President Trump a dotard and insult so rarely use that it quickly became the most searched word on the Internet Kim s fuming over Trump s recent thread in which the presiden