How ‘thinly veiled’ social media ads influence what we eat

News about food safety can be hard to keep straight. That’s been complicated by a little-known tactic used by the food and beverage industry to influence what we eat and drink through social media, the subject of a joint investigation by The Washington Post and The Examination. John Yang speaks with Washington Post health columnist Anahad O’Connor, who worked on the investigation, to learn more.