As for domestic security - I think it has been long concluded that the reason airlines want to check a person's photo ID is to prevent someone from using another's ticket, which enhances revenue; yes, it was originated by the FAA for security reasons, but I believe the FAA relaxed that rule...not sure though.

As for international security - It would be nice if the FAA would allow frequent flyers to present their FF card in place of the security check; FF members would still go through the international security check once, but after that, their card could act as a waver. With presentation of our FF card, we could simply say "I am aware and in compliance with the security procedures" - why do we need to keep hearing the same security routine over and over..."I have packed my bags myself, in my hotel, and they have not been out of my sight. I have not been given anything to carry and I have no weapons, no electronics, or anything that looks or could be used as a weapon" ...AAHHHHH!!!!! then they go on to profile....like the 200,000 miles I have flown on the airline was just a clever scheme to get past the security agent this one time.
I no it is not the airlines' fault, but if they pressure the FAA or NTSB enough, maybe something could be changed for FF members or at least elite FF members...oh, and I must pay the airline $10 to have this security interrogation done.