What airport was this again? 
Is this really GQ?
Pittsburgh (PIT) also has these machines, but only randomly selected folk have to go thru it. Out of I dunno, 100 or so times, I got directed through it twice, I think.
Ugh…missed the edit window…
Grammar correction to my last post…I should have said,
“but only randomly selected folk have to go thru ONE. Out of I dunno, 100 or so times, I got directed through ONE twice…”
I went through the “puffer” on a return through Vegas in the evening after spending a good 3-4 hours at a local handgun club.
Not even a blip, and I put at least 1000 rounds downrange that day. I’m sure a real terrorist would figure they’d shower or something after building a bomb, so color me unimpressed…