We had already been through boarding pass checks, passport checks, scanners, and pat downs. At the gate, each passenger had already had their tickets scanned and we were all walking on the jet bridge to board. It’s at this point that most people assume that it is all done: finally we can enjoy some sense of normalcy.
This time was different. Halfway down the jetbridge, there was a new layer of security. Two US Marshals, heavily armed and dressed in dystopian-style black regalia, stood next to an upright machine with a glowing green eye. Every passenger, one by one, was told to step on a mat and look into the green scanner. It was scanning our eyes and matching that scan with the passport, which was also scanned (yet again)
I couldn’t find anyone who had ever seen something like this before. I wrote friends who travel internationally and none said they had ever seen anything like this.

I will tell you how it made me feel: like a prisoner in my own country. It’s one thing to control who comes into a country. But surveilling and permissioning American citizens as they leave their own country, even as they are about to board, is something else.