As the OP I wanted to know this info for extra members of our party. We have passports but my daughter and her kids do not. I understand they are taking their chances but passports are not cheap for 3 people who will most likely not use them again in the near future.
I lost my ID while going through security to Fl. Going through security to get home was not a problem at all. I actually got escorted through and out the other end before the rest of my party. My carry on was searched but they only used a credit card for ID I believe. With that experience, I was wondering if anyone actually had an experience of having to get back to the US without the passport.