Harry Houdini and The Great Escape

Rebecca Fine: "Now as a child I was fascinated by Houdini and fondly remember reading his memoirs, in which he revealed many of his secrets for escaping from prisons, submerged trunks, bank vaults, and so on.
For example, in one of his most famous and spectacular feats, he broke out of Scotland Yard, even though one of the conditions of the challenge was that he be allowed NO clothing whatsoever - in order to keep him from concealing tools or keys.
So how did he do it? "

It was quite simple, for once...