British Airways is expanding its biometric boarding gate tests in the US. Last November, it began testing self-service boarding gates in Los Angeles Airport that don't require customers to produce either their boarding pass or their passport. Instead, passengers only need to look into a camera, wait for their biometric data to be checked against their passport, visa or immigration photos and then walk onto the plane once their identity has been verified. So far, the US tests have been limited to those flying out of LAX on British Airways flights to Heathrow. But now, the self-service gates are also being tested in Orlando International Airport with customers flying to Gatwick as well as in New York's JFK airport and Miami International Airport with passengers flying in to the US from Heathrow.