How the TSA created two classes of travelers

I’m old enough to remember what it was like to fly before 9/11 — there were no TSA lines, there was no PreCheck, and there certainly wasn’t any requirement to take off your shoes. In fact, there wasn’t any TSA at all.

But 9/11 radically changed the way we move through an airport. The formation of the new Department of Homeland Security and the new Transportation Security Administration led to much more rigorous and invasive security measures for travelers trying to catch their flight.

This year is the 20th anniversary of the Department of Homeland Security and the TSA, and I think it’s safe to say that nobody enjoys waiting in the airport security line. And in the post-9/11 world, things like PreCheck are the great innovation of the...

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