Back when the Lib Dems were having their leadership contest (Round II coming soon), the fight came down, in the end, to Campbell versus Huhne. In Chris Huhne's manifesto he said that under his leadership the Lib Dems would promise, "to roll back [Labour's] security-obsessed surveillance state". He also cited Benjamin Franklin saying "any country that trades its freedoms for its security deserves neither".
Personally speaking I think these are both honourable and absolutely correct statements to be making. Whilst there is a myth perpetuated by - most often - the Lib Dems, that Tories are instinctively authoritarian, it is simply not so. As a Tory that writes often about the encroachments on our liberties that are being built with ongoing technology infrastructure I think I can honestly reject that accusation.
The reason I bring this up though is that I find it somewhat bizarre that Chris Huhne would make such pronouncements about the "surveillance state" whilst simultaneously declaring on the Register of Members' Interests that he has shareholdings in a UK company called IRISYS which specialises in security, monitoring and surveillance intergration technology.