SmileDirectClub goes to Walmart — Taco Bell’s owner devours hamburger chain — The taser creator could split in 2

Summary: SmileDirectClub abandoned its direct-to-consumer ways to launch in Walmart stores, but it’s missing one big thing: Its core product. Taser-inventor Axon acquired a rival last year, but now it’s been accused of running a taser monopoly. And Yum Brands happens to own Taco Bell, Pizza Hut, and KFC, but now it’s acquiring a burger chain — so why burgers, why now?