Cocaine is an expensive glamour drug. But that patina of prosperity doesn’t trickle down to the farmers of the coca leaves, who lead lives of poverty and dread. Toby Muse joins host Krys Boyd to talk about his 15 years living in Colombia observing how the drug trade there operates from the top down. His book is called “Kilo: Inside the Deadliest Cocaine Cartels―from the Jungles to the Streets.”