Source: BBC News
US Sikh organisations have expressed anger over changes allowing airport security staff to "pat down" turbans.
Until now turbans have been searched or removed only to resolve an unexplained alarm from an airport metal detector.
But now security will have greater discretion to inspect turbans so that they can be manually checked for objects such as non-metallic weapons.
However Sikh groups have responded to the new measures by describing them as outrageous and discriminatory.