Critical Update

CRISPR is a gene-editing technology that the world is still figuring out. The tool allows a user to reprogram the DNA of cells in plants, animals and humans but with that comes a slew of ethical and legal questions. Scientists are still exploring potential uses—and they aren’t the only ones. Some individuals experiment on themselves. In this episode, a Food and Drug Administration official and a biohacker share their perspectives on what’s happening now and where things could go.