The nation's largest retailer, Walmart, has made a big change for Black Friday.
You won't have to wait outside for an early morning opening Friday. The stores will already be open.
Walmart is keeping its stores open 24 hours Thanksgiving Day and right into Friday. It is a safety measure put in place to keep lines from forming outside of the stores. Last year, frantic shoppers trying to get into a store on Long Island trampled to death a security guard.
