Not to diverge too much from the topic. At JFK, the first class passengers have a priority queue through the security system as well. I flew through JFK once

Not to diverge too much from the topic. At JFK, the first class passengers have a priority queue through the security system as well. I flew through JFK once on a Holiday (4th of July) and TSA was so understaffed that they barely had enough staff to handle the 1st class passengers that were arriving. So as if waiting in security lines were not enough, imagine waiting in a security line that was actually getting longer as you just sat there holding your bags watching first class after first class passenger go through and everyone else just standing there. I just couldn't understand why the TSA would even care about the class status an airline gives to its passengers, I don't know any other airports that do this.