Delta launched its first biometric terminal in 2019 and has since grown as the leader of biometrics with four new markets in less than a year. Biometrics is intended to make the airport less stressful and helps the traveler move through security with ease. However, if a traveler does not wish to use biometrics, they can still show paper documents and proceed as normal. The first curb-to-gate biometric terminal is in Atlanta, Georgia for International Travelers. Travelers flying on Delta or partners including Aeromexico, Air France, KLM, Korean Air, or Virgin Atlantic can use facial recognition everywhere, including: check in at the self-service kiosks in the international terminal, dropped checked baggage, serve as identification at the TSA checkpoints, board an international flight at any gate in Concourse F. Also, customers can go through U.S. customs for international travelers coming into the U.S. 70 percent of travelers found the curb-to-gate system appealing after using it. Delta has been testing biometrics for the past three years at least, facial recognition being the launching point and standard for each airport. Atlanta, Detroit, and New York-JFK with U.S. Customs and bag drop at Minneapolis/ St. Paul for International travelers. Recently, Delta has launched optional biometric check-in after testing at Ronald Reagan Washington National Airport (DCA) for Delta Sky Clubs. Delta is also leading the industry in RFID baggage handling and high-tech screening lanes. Travelers can also check-in through the Fly Delta app. These biotech enhancements are now available at ATL, MSP, SLC, LAX T2, and DTW.