Horrible experience Monday returning to the states from Paris. I fail to understand how an international airport can be run so poorly in this day and age. They always seem to be caught by surprise when a plane load of passengers walk in. Had to queue up in a hallway upon deplaning - U.S. citizens to the left wall visitors to the right. If they couldn't speak or read English it had to have been an anxiety-ridden experience. Many of us on the left side tried to help those who didn't comprehend. There was only one worker directing people and it didn't appear that he knew any other languages. After 10 or 15 minutes of just standing there we were allowed into Passport Control room which was crammed full of passengers from other flights. It was so full that we had to queue up against the far wall. It was hot in the hallway and it was even more hot in this room. They had huge fans. We had to ask that they be turned on. Finally got through and found our luggage pulled from the carousel meaning passengers had to circle the carousel several times to find our luggage instead of staying in one place and pulling it off. They pulled the luggage off because it was needed for a plane from Athens that had just arrived. Even more chaos ensued when that baggage was pulled and tossed into the Paris mix. Absolutely mindless operation through every stage of deplaning. Shouldn't we have this all figured out by now? We've been doing this flying thing for a while now.