(Grapevine, TX) -- Walmart President John Furner is discussing his company's decision to pull out of Portland. Furner spoke at the National Retail Federation conference in Texas over the weekend about the company's closure of its last two stores in Portland earlier this year due to losses caused by shoplifting. Furner says it's "a really hard decision to close a store" but that employee safety and product loss are a priority. He adds that most of the shoplifting is organized retail theft rather than petty crooks. A new study done by the retailer's group shows that about two-thirds of consumers are concerned about gang-led shoplifting in their community. It's even higher for urban communities.