The Federal Trade Commission issued a strongly worded post Monday, warning companies against unfair or deceptive practices in their use of artificial intelligence as well as violations of fair-credit rules. It told companies to hold themselves accountable for their algorithms or “be ready for the FTC to do it for you.” Also, the European Union this week drafted detailed legislation that would regulate AI, including banning some surveillance and social-credit scores. Molly speaks with Ryan Calo, a law professor at the University of Washington, who said the FTC post was a surprise.