In my opinion, ATL is one of the worst airports I have been to.
As Mr @ Spotty M advises, i.e. don’t buy any liquids over 100cc or you will loose them, it happened to me. I had a couple of bottles of wine from CDG duty free, however I did not know that after landing at ATL one has to go through another security check and, of course, liquids over 100cc are not allowed. I hope the miserable security staff didn’t enjoy them too much.
I need to get back to Florida or a State not too far away. Does anyone know of a direct flight from France? It would seem that AF and Delta have the monopoly with all flights operating CDG-ATL and not one direct to Florida.