Good point. In ATL, before exiting customs and immigration, you must proceed through a security checkpoint. Been like that for years. I've always connected through ATL, so proceeding to the B/E lounge in Concourse E with my carry-on has never posed a problem for me. If the XXX-ATL international segment terminates at ATL, I'm not sure if you can access it. In addition, with suitcases and all, it would definitely be somehwat cumbersome.
Last time I flew into JFK was in July, pre-9/11; then again, only connecting, so access to the B/E lounge was never a problem either.
In any event, the DL flights inbound from Europe generally land in the afternoons, so there shouldn't be a problem with hotel check-ins, unlike the eastbound flights from the U.S. which land in the early a.m.
[This message has been edited by FTraveler (edited 02-04-2002).]