Israeli author Yuval Noah Harari rose to international prominence with his bestseller "Sapiens: A Brief History of Humankind." His new book, "21 Lessons for the 21st Century," is a plea for humans to address our most pressing problems. Chief among them, Harari writes, may be the convergence of biotechnology and artificial intelligence, which has turned humans into "hackable animals." Harari joins us to talk about the book and to take your questions.
Yuval Noah Harari, lecturer, Hebrew University of Jerusalem; author, "21 Lessons for the 21st Century," "Homo Deus" and "Sapiens"