Originally Posted by
HSLD
Not sure about the passports, but:
The Kiosks have a card reader that looks like a gas station credit card reader, slide your ID in that thing and watch the magic happen.
Not sure if the L-UAL kiosks are the same as the L-CAL kiosks, but at the top of the CAL machines there is a horizontal passport reader. That's in addition to the ID/Credit Card reader located on the lower part of the machine. I tend to use the passport reader because it's a pain to get all the stuff off my ID clip to get to my ID.