The airlines need to figure this out on their own. Commuter rail lines deal with much worse, and somehow don’t need a special list; instead, relying on the same criminal trespass laws the rest of us use.

And… to be fair, far more railroad conductors have been hurt or killed by passengers than airline employees.

Railroads solved this problem a number of ways, but one way was having their own law enforcement agencies. The airlines, which are far more profitable, instead get this service mostly subsidized by taxpayers, through local police almost always stationed at airports, air marshals provided by the FAA, and passenger screening by TSA.