Jennifer Doudna is one of the leading modern geneticists. Under her leadership, the CRISPR genome-editing technology was developed—the cheapest, yet at the same time the most accurate and powerful way to manipulate DNA. But fairly quickly it became clear that this method, which allows targeted changes to the DNA of a living organism, is a highly risky technology that is already being called “the most dangerous invention since the atomic bomb.” Genetic manipulation is a real “crack in the fabric of the universe,” from which dark forces capable of destroying humankind could break free…