A respected moderator on FlyerTalk, SanDiego1K, came up with an interesting idea for this and other new threads here in TS/S. And Bart graciously agreed to the plan.
When he has updated information regarding a change in the prohibitions on TSA carry-ons, he'll post the info in this thread and we'll update the thread title with a new date to indicate there is new info for your perusal.
So watch the date in this thread for updates as to the changing reg's we have to deal with at the TSA checkpoints.