Did you know that the number-one fruit in the country -- bananas -- might be extinct in 30 years? So says Dan Koeppel, the author of Banana: The fate of the fruit that changed the world. Due to the spread of the Panama fungus and because we eat only one type of the fruit (the relatively bland Cavendish variety), the world banana market is at risk of collapse. Interestingly, though, Koeppel dispels organic production as an answer to the dilemma. And surprisingly, he argues that genetic engineering wouldn't be such a bad thing for the banana, which is a subsistence food in Africa, Asia, and Central America. Koeppel was interviewed on NPR's Fresh Air yesterday.