At the current rate, we'll have to grow as much food in the next 30 years as we have in all of human history. And many experts argue that to do that, we’ll have to engineer the genes of our food. But the concern surrounding whether we should grow and eat genetically modified food has made the technology one of the most divisive topics of our generation. Glad You Asked host Christophe Haubursin embarks on a journey to Hawaii to understand what the controversy is actually about — and uncovers whether GMOs are really delivering on their promise to feed the world.