I used to commute weekly to MEM before 9/11 (but have not since), so I can't really give much advise on the current state of affairs. The only thing that I'm sure that's consistent is that you must take your laptop out of the bag for XRAY. They were doing this before 9/11 as the XRAY machines they had were so antiquated that they coudn't look through a laptop.

It always ticked me off every week flying out of that hellhole to have to do the laptop dance. Little did I know I'd have to repeat that inane process at every airport after 9/11.