New York CNN — Elon Musk’s social media platform X on Tuesday announced it’s hiring a new head of safety as it faces ongoing scrutiny over the spread of hateful speech, conspiracy theories and other controversial content on the platform. Kylie McRoberts — a nearly four-year veteran of the company formerly known as Twitter — will oversee the company’s global safety team and work to build out a new safety hub in Austin, Texas, that CEO Linda Yaccarino announced in January. McRoberts’ elevation to the role comes nine months after the company’s previous safety leader, Ella Irwin, who oversaw what...