https://www.siliconvalley.com/2024/06/21/opinion-a-warning-on-social-media-is-the-very-least-we-can-do/ > You’re in the middle of a public health emergency involving a dangerously addictive substance — let’s say an epidemic of fentanyl or vaping among teens. Which of the following is the best response? > 1. Issue a warning. Tell everyone, “Hey, watch out — this stuff isn’t good for you.”