In 1999 when I was flying all the time there were metal detectors, but when they found my pocketknife (not every time!) they just waived me through. At my "home

In 1999 when I was flying all the time there were metal detectors, but when they found my pocketknife (not every time!) they just waived me through. At my "home" airport (DIA) I would park the car 15 minutes before flight time and then run to the bridge. (Back then I had clients who would pay for parking in the garage.) There were "controls", but they were very low-stress.