Re: A=B=C=D
That's the trouble with meta-data. Not only does it not specifically identify a person as opposed to an address or whatever, it doesn't even tell you why the communication was made or even if it was completed correctly.
The massive problem with meta data is that it can be manipulated by carefully selecting the sources you include, and there are very few people that understand the difference between a probability inferred from meta data and a hard fact derived from the actual contents of communication. Meta data "facts" are NEVER facts, they are always probabilities and should be presented as such.
Not that I hold out much hope they will, which is why I am absolutely against uncontrolled mass surveillance (because that's what they're really after).
I dare ANY, and I mean ANY MP who is for this idea to offer their data to the public for 6 months, because that is really what they're asking us to agree to - I have yet to see any access restriction actually be respected. If you dare not, don't ask the voters to do so.