I used to take Amtrak to/from Chicago 2-3 times a year, and once as I was headed back home TSA had set up shop at the Chicago station and was checking everyone.

I used to take Amtrak to/from Chicago 2-3 times a year, and once as I was headed back home TSA had set up shop at the Chicago station and was checking everyone. I don’t travel by train these days so I have no idea whether that has happened again.