US carrier Delta Air Lines is a launching fingerprint boarding trial at Reagan National airport in Washington.The airline had been testing fingerprint recognition at its Sky Club for SkyMiles members for the past month.”We are actually working with our technology partners to look at various types of biometric technology and to determine what is the best course to proceed for our customers across the Delta network,” Sandy Gordon, Delta's vice president of airport customer service, east, told Washington Top News.”For example, in Minneapolis we have self-bag drop that uses facial recognition.””We are rapidly moving toward a day when your fingerprint, iris or face will become the only ID you will need for any number of transactions throughout a given day,” Delta COO Gil West said.Last week, Delta decided to extend a biometric security trial to Atlanta and JFK airports.Launched in partnership with U.S. Customs and Border Protection (CBP), the exit screening will be used with customers departing Hartsfield-Jackson Atlanta airport and New York-JFK for international destinations. In May, Delta had revealed plans to launch a trial of a biometric bag drop system initially at Minneapolis-St. Paul International Airport.Delta said the procedure and technology is designed to give CBP an enhanced ability to record when visitors depart the U.S. Delta's eGate tests, powered by biometric identification and management providers Vision-Box at JFK and NEC Corp. of America at ATL, confirms passenger identity using advanced facial recognition technology and Delta ticketing information.