If people have done nothing wrong, they have nothing to fear.
How many times have we had that insulting platitude wheeled out when the already-powerful seek to extend their power in the area of law and order.
It has been dusted off again as the Key Government attempts to get its spy bill passed. If you are innocent, why worry that some faceless figures - who, incidentally, may have the authority to shoot you and imprison you - can be privy to your phone calls, emails, business meetings, heart-to-hearts with your bank manager and chats with your mates in the pub?
The corollary of this is that those who object to the expansion of the Government Communications Security Bureau's powers - who say: "Be afraid ... be very afraid" - must have something to hide. It is, of course, the oldest ploy in the book for those who rule to try to cast the shadow of guilt over those who oppose or protest their rule. Game Of Thrones, anyone?
Such tactics were used in the anti-terror raids in October 2007.