For a Longer, Healthier Life, Share Your Data Privacy protections are standing in the way of artificial-intelligence programs that could diagnose cancers and screen for genetic disorders. Read More…

The Heartbreakers at Chain Restaurants McDonald’s is far from the worst offender. The Cheesecake Factory’s Breakfast Burrito has more than a day’s worth of calories, two days’ worth of sodium and more than three of saturated fat. Read More…

Suspected Gunman Will Be ‘Nameless,’ New Zealand’s Prime Minister Says Prime Minister Jacinda Ardern said in Parliament on Tuesday that she refused to give notoriety to the man accused of killing 50 people in Christchurch, New Zealand. Ms. Ardern has implored news media and social media sites like Facebook to do a be… Read More…

To Cover China, There’s No Substitute for WeChat Li Yuan conducts much of her work on the WeChat mobile app, including spotting trends — and prodding sources to get back to her. Read More…

An Old Scam With a New Twist If you have gotten a message from someone who claims to have dirt on you — and shows off, as proof, a password you’ve previously used — here’s what happened. Read More…

Apps That Blast Out Crime Alerts Don’t Have to Rattle You Neighborhood-watch networks are on the rise, even though crime is not. Here’s how to put the data into perspective. Read More…

On Migrant Journeys With WhatsApp and Google Translate Miriam Jordan, who covers immigration for The Times, says that migrants crossing the border often use WhatsApp and that Google Translate can break the ice. Read More…

House Democrat Demands Six Years of Trump Tax Returns From I.R.S. The House Ways and Means Committee chairman, using an obscure provision in the tax code, formally demanded President Trump’s personal and business tax returns, most likely starting a momentous fight. Read More…