Originally Posted by CDTraveler
Are both parents traveling with the kids, or just you? In some cases, if children are traveling with just one parent, the traveling parent may be asked to prove that they have the other parent's permission for the kids to travel. Usually this is only an issue with travel to another country, but I have also been asked for it on 2 domestic trips now.
Out of curiosity, how did you "prove" that the other parent had given permission?