They seem to have a new (2012) International Terminal at ATL:
● For international travelers bound for Atlanta, the international terminal will end the cumbersome baggage recheck process. No longer will those passengers have to recheck bags after going through Customs, then reclaim them at the main terminal. That’s because the international terminal will enable them to leave the airport without taking the people-mover train back to the main terminal.
Should solve the duty-free liquids problem ... Although the old International Terminal E is still used for international flights, and there is no indication that the problem has been solved there.