Years ago I went to see Lord of the Rings at a theater. It was after 911. There were two Middle Eastern men with a baby stroller. No women anywhere. The baby was not visible under a blanket, never moved or made a peep. I kept thinking why are two guys at a theater with a baby? Where are the moms? I called the FBI. See something, say something.
What did the FBI do?
James Woods witnessed the 9-11 hijackers on a dry run and reported it to the authorities when their actions seemed peculiar on his flight.
But it is political incorrect to profile such things because the enemies of America are entrenched in the State Department (have been since before the days of McCarthy), the US military, the US government, the courts, academia, and the media.