I fly into and out of PDX regularly, and there's no scanner that you have to gaze into. Parent is talking about cameras at a high angle in a hallway—no one is there to make you look up. Are you talking about the millimeter-wave scan in security? Your eyes can be closed while doing it—no one complains.
Yeah, you know what I'm talking about. They're fairly new (at least on the D/E side. They're angled in a way where it should be able to get your face as you're walking up unless you stare at the ground, but considering having your face scanned isn't a requirement for flying they're probably fine with that - if they are in fact collecting this data.
Ahhh, not the same as the lanes we have that you need to gaze into an obscured camera to pass inwards international border control (must get green light before gate will let you through).
Global Entry kiosks require you to look directly into a camera a foot from your face. It's not a very good camera, but I wonder if that's what they are thinking of?