Just my two cents worth. On 07/04, no checked baggage. Concource A screening, TSA did not even check my ID. Did look at boarding pass. I did not have to take off my wingtips (no steel shank). Since there was no one in line, don't think they even looked at the screen for my bag, it just flew through the machine.

The three TSAs were so involved with talking about after work plans (BBQ, etc.) -- that I did not exist -- just waved me through.

At MEM, you never know what will happen.