seem to recall an episode where he claimed you could create an encrypted Truecrypt volume, then drop another encrypted volume inside of it
Truecrypt allows you to create a hidden volume that is inside any file... a .doc .jpg .tmp anything. You could hide it in a jpg and the jpg would look and work normally.
that would be invisible unless you knew it was there. Thinking about this, I find that hard to believe, so I'll have to look that up again.T
