At the airport - like a doctor, on an airplane - like in a prison: the 9/11 attacks revolutionized air travel
Today, September 11, is the 20th anniversary of the tragedy. The attacks have not only become part of US history forever - they have overhauled airport security regulations around the world. What has changed in 20 years and what innovations are still to be expected, the Voice of America newspaper told. The events of September 11 ...