SCIENCE | FDA allows menthol-flavored vapes on the market
TECHNOLOGY | Detroit police revise crime-fighting tech policy
Pope Francis and Christian leaders call for clarity on the ethics of artificial intelligence
The “cryptoterrestrial hypothesis” raises eyebrows—and questions
Fatal overdoses fell slightly last year, but new substances maim bodies and minds
Samuel D. James | It’s time to recognize the dangers of social media—especially to young people
