That was probably the precheck lane. They send randos through it every once in a while. I'm not sure if it's supposed to be a sales pitch or if controlling the

That was probably the precheck lane. They send randos through it every once in a while. I'm not sure if it's supposed to be a sales pitch or if controlling the lines plays into it. I have precheck and have never seen a dog there, but I've randomly gotten swabbed for explosives a few times.