There are more than 800 million starving people on the planet, and more than 20,000 people on average continue to die from hunger every day. But the world produces more than enough food to feed the entire human population. Award-winning author and journalist Martín Caparrós traveled the globe to understand why people are still hungry, and wrote the international best-selling book, "Hunger," in the process. The book was recently published in English for the first time. Maria Hinojosa speaks with him about his findings.

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