Earlier quoted context omitted.
> Do you need ID to travel from L.A. to Phoenix? By commercial air, yes; in the US, you need ID and a matching boarding pass to enter the secured area of an airport, which is an essential prerequisite to boarding an airplane.
Then answer this bizarre question; Why would a person with the intention of doing some stunt use mismatching documents? If this person is a terrorist or some kind of outlaw, would not s/he use fake docs telling a story reputable to customs officers/TSA? I believe this security theatre is nothing but a money sink hole. Use whatever means are necessary to make transportation unpleasant to honest travelers if it does no…
Let's assume you are a bad person on the no fly list.
1) Go to an airport, hang around the bathrooms in the pre-security area. Wait till somebody drops a boarding pass. Board a plane and do bad things.
2) Go to an airport, have an associate who's not on the no fly list buy a boarding pass. He gives it to you. Board a plane and do bad things.
Both are scenarios that are stopped by simply requiring matching ID and are lower effort then getting fake IDs.