Holding an innocent persons DNA profile for 6 years is no more ‘justifyable’ than holding a random section of the public’s DNA profile for 6 years for exactly the same reason.

A more confident, and indeed, more liberal government, would however make the argument that we cannot create a completely secure society without making the kind of sacrifices that would reduce the amount of freedom which each and every one of us currently enjoys. As it is however, we instead have a government that is terrified both of the power of the press in one of its “fits of morality” and which knows that such woolly-thinking is hardly a vote-winner.

Well said.

It just isn’t a very good justification when set against the arguments against it. Let’s try a little less hyperbole and keep with the rational arguments instead.