There was a time in America when its citizens were not presumed by their own government to be terrorists in U.S. airport terminals until they proved to the satisfaction of a federal government agent otherwise. Today all airline travelers are inspected and searched, and all are presumed to be terrorists.
There was a time in America when its citizens were not presumed by their own government to be aliens. U.S. citizens were once allowed to go straight to U.S. Customs when returning home on an overseas flight. Today they get in line with all of the foreigners to be "inspected" by federal agents of Customs and Border Protection.
Those times are gone. It is a very different, very fearful America we live in today. And fear makes people do foolish things. And more's the pity.