Bruce Bennett/Getty Images
Walmart CEO Doug McMillon said stores could close if the rising tide of theft isn't stemmed. Customers and employees blame self-checkout, which Walmart has increasingly relied on, for theft. A theft expert said automation "inherently means there's going to be less eyes on a transaction."Walmart's CEO has warned that the retailer may need to close down stores due to theft – but many of the company's customers and employees blame one growing...