> List like these must be publicly available to anyone, like credit history/score. Devil's advocate, but the point of the no fly list is to stop someone carryi

> List like these must be publicly available to anyone, like credit history/score. Devil's advocate, but the point of the no fly list is to stop someone carrying a flagged ID->person mapping from getting onboard an airplane. (Because fake IDs exist, IDs are not 1:1 to people!) If the no fly list was public, then people who wanted to get on an airplane and cause devastation would see if their current ID is blacklisted, and if so, go get a new ID under a different name. Hard but not impossible, especially with RealID constantly being delayed. If America had verified identifying documents that couldn't be easily forged, this wouldn't be a problem, but that isn't the infrastructure we have right now, and it really wasn't the infrastructure we had when the no fly list was implemented. Without biometric IDs, the no fly list is essentially a blacklist of IDs. How the list is used in practice is a separate discussion from the threat modeling exercise of should the list be public.