I remember going through security for domestic U.S. flights in the 1990s. They had magnetometers and I think they had some kind of baggage x-ray machine. It was

I remember going through security for domestic U.S. flights in the 1990s. They had magnetometers and I think they had some kind of baggage x-ray machine. It was faster because they didn't check IDs, and I don't think they were that careful about having people go through the metal detector one at a time with a security agent actively watching them pass through.