> Like, have you every flown somewhere to attend a conference and a meeting? Same thing.

I flew to an expo where our company had a booth and the US border patrol took me aside and started asking if I'd be selling things there or working at the booth in some other form. I told them that I am a tech going to see other companies' stuff. They then discussed something between themselves for 10 minutes and let me pass. This was 20 years ago, so them being picky is certainly not a new thing.