I think some people like the Hof are living in some fantasy world.All this encryption rubbish is only to stop an honest thief not a law enforcement agency.
If the Hof thinks that customs or any gov group does not have computer experts he is deluding himself.It may take some time but they'll get there and then charge him with refusing to assist customs or hindering their investigation.
To encrypt your computer would be like re-inforcing your bag by strengthening the hinges and fitting a hardened steel lock.Then refusing to give customs the key or combination.
Does anyone really think that is going to stop customs?
Enough of this 006 & 7/8's rubbish.
IF you have or are carrying anything illegal according to the laws of the country you are entering then you are putting yourself at risk.
As far as child pornography is concerned then I have no sympathy at all for you.We all have different standards as to what is OK but anything to do with children is off the table.