Future of Food: This Genetically Engineered Salmon May Hit U.S. Markets as Early as 2020

People are eating more fish than ever, and a third of global stocks are threatened by over-fishing. A small company says its genetically engineered salmon can help meet the demand, as critics say it’s a step in the wrong direction. NewsHour Weekend's Megan Thompson reports on the GM fish. This story is part of our "Future of Food" series, hosted by Mark Bittman and supported by the Pulitzer Center.