Libdemology Leadership: Buff Huhne or Calamity Clegg?

Old news, but ... Is it really the case that Chris Huhne had no prior knowledge of a briefing paper issued by his office under the heading "Calamity Clegg"?

If so, what does that say about his systems? If not, why is he lying to the nice man from the BBC?

Both of them will play with the British public like so much unidentifiable and unconscionable "Horrid Nasty". Lib Dems - well on the way to another leadership cock up.