You must provide state or federal ID at check-in (Passport, Drivers Licence etc), as far as I am aware. You also have to submit the same details when booking online.
When entering the TSA checkpoint there is a further check of your boarding card and the same ID to cross reference the details on one with the other. It’s this section of the checking process which was at issue.
I can understand that had this person checked in at a desk the extra layer of checking might be viewed as overkill. However, what about those who web checked?
I put all this down to the current climate of TSA bashing. I travel through LAX frequently and find the processat the UA-TSA section to be fast and efficient.
I can understand the frustration from outside the US regarding the ‘them and us rules’. As a European, I find the LHR pre check-in security questions/interrogation to be uncalled for, especially for a young guy, in business with a 1K card – seems to flag up all sorts of odd questions! That sort of attitude certainly doesn’t arise with internal flights.