So Hernandez was arrested for trying to leave the United States, but not for entering illegally - makes you wonder.
Likely he was checked because of the children. There are laws on the books to keep people from leaving the country with children that are not their own- or leaving with your own children without the knowledge or consent of the other parent. People are not always checked, some get through the cracks but legally you are not supposed to be able to just leave the country with children without showing parents know and approve.
Not at all, they wouldn’t have bothered him if he had been coming in.