Amazon is working on new checkout terminals that would allow shoppers to make payments using biometric data found on their palm prints rather than having to whip out a credit or debit card, according to the Wall Street Journal.The report follows a September 2019 report in the New York Post that Amazon was testing hand biometrics technology at Whole Foods stores and for use in vending machines.Last December, Amazon filed a patent for technology that could identify you by scanning the wrinkles in the palm of your hand and by using a light to see beneath your skin to your blood vessels. The resulting images could be used to identify you as a shopper at Amazon Go stores.The U.S. Patent and Trademark Office published an application on Thursday that suggests the e-commerce behemoth sets its sites on Amazon Go stores.