Smoking used to be everywhere, the way Facebook, TikTok, Snap, YouTube and Instagram are now. Society decided to break the habit, but it took a long time.

© Jason Henry for The New York Times

Meta’s settlement is far from perfect, but it’s better than nothing.

Our reporter Cecilia Kang explains Meta’s settlement of a lawsuit claiming that the company’s social media platforms had harmed teenage users.

A legal dispute over the future of Kalshi, Polymarket and others has drawn in the Trump administration, the president’s son and nearly every state attorney general.

© Ricardo Tomás