It's very possible that both statements are true. 1) We know that the UK can imprison people who refuse to disclose encryption keys. http://en.wikipedia.org/w

It's very possible that both statements are true. 1) We know that the UK can imprison people who refuse to disclose encryption keys. http://en.wikipedia.org/wiki/Key_disclosure_law#United_Kingdom http://en.wikipedia.org/wiki/Key_disclosure_law#United_Kingd... 2) Miranda could have been carrying a valid password written on a piece of paper so he would not be jailed simply for failing to remember a complex password. 3) That password might decrypt one or more TrueCrypt containers, with 20GB of unimportant decoy documents. 4) In addition to the 20GB of decoy documents, the TrueCrypt containers could contain hidden volumes for plausible deniability, encrypted with different keys that Miranda did not know. http://www.truecrypt.org/docs/hidden-volume http://www.truecrypt.org/docs/hidden-volume http://www.truecrypt.org/docs/plausible-deniability http://www.truecrypt.org/docs/plausible-deniability 5) If the UK authorities didn't discover the hidden volumes until after Miranda had been released, they're left with a bunch of decoys and 40GB they can't decrypt.