1 - Checkpoint Friendly . . . it must have a separate padded compartment for my computer. The compartment must be able to lay flat from the balance of the bag so that it can clear through the TSA checkpoint without having to remove it from the actual bag. One zip and I am done.
2 - Multiple compartments that all zip closed to contain small items.
3 - Secure area for my travel documents, medications, and wallet.
4 - Lightweight but durable ballistic fabric.
5 - Padded shoulder strap.
6 - Can be carried on the handle of my rolling carry-on without the need for additional straps.
Well I finally found my brief for China. It is larger than I had desired for the brief, but it fulfills all my requirements. Still the bag only weighs 4.4 pounds. It is called the Pathfinder Compubrief Checkpoint Friendly Briefcase. The best news is that it was on sale . . . 40% off!