Originally Posted by L-1011
No need to memorize all shoes that are travel approved. You only need to memorize one thing: sole thickness. The rest is up to the WTMD, if it doesn't beep, and the soles are less than [SSI Information removed] inches, then let the person through. It's as simple as that. See, some free advise.

Nah, memorize this instead:
There is NOTHING that can be hidden in shoes that cannot be hidden elsewhere on/in a passenger.
David Stone, you and the "Shoe Bomber" are welcome to spend a lot of time doing the same thing to each other, you filthy little un-American piece of human garbage. I love the way you hide from the passengers and never take a commercial flight, you candy-assed coward.