FILE - In this Aug. 13, 2008, file photo, shows an empty Red Rocks Amphitheatre outside of Denver, Colorado. Amazon says it is bringing its palm-recognition technology to the Red Rocks Amphitheatre and it will be available at other venues in the coming months. It’s the first time the technology, called Amazon One, will be used outside some of Amazon’s stores, where shoppers can pay for groceries and snacks by swiping their palms. (AP Photo/Ed Andrieski)