FBI Investigates Twitter Cyberattack

P.M. Edition for July 16. The FBI is looking into yesterday's widespread cyberattack on Twitter. Heard on the Street columnist Dan Gallagher discusses the impact of the attack on the social-media giant's business. Plus, columnist Justin Lahart discusses the outlook for retail sales. Shelby Holliday hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices