Returning after 20 months

[BigJoe5]

Yeah, but what concerns me that despite being out for a long time everything went so smooth. Not even my reentry permit had been looked at or opened.

Thanks!

CBP Officers try to keep interaction to a minimum (a matter of seconds) per person on average because of the occasional "problematic situation" . They are not supposed to simple send every minor problem to secondary so they need some wiggle room. You only required a few seconds.