The federal government has ‘no fly’ and ‘enhanced screening’ lists, where they check the names of passengers and decide under what conditions someone is allowed to travel, if at all. It’s a form of pre-crime profiling where people have been added to the list by mistake, for revenge, or for any number of reasons that you aren’t allowed to know. The government claims it’s exempt from judicial review.
This process is meaningless, though, if people can change the name they fly under. So in 2005 Congress passed requirements for IDs that are harder to fake. Since then, however, rules requiring people to actually have a ‘REAL ID’ have been kicked down the road.