Nobody has done more to bring the truth about phone hacking at the News of the World into the open than West Midlands MP Tom Watson.
The imminent closure of the News of the World does not change the fact that Cameron is closely linked to the paper through his associations with Andy Coulson, Rebekah Brooks, Elisabeth Murdoch and others.
There is one good way to bring the family down: The Proceeds of Crime Act - they can't avoid it by closing the paper down.
Yesterday was a momentous day for British journalism and of course the PR industry. We are now sitting on the edge of the biggest scandal ever seen in the media. The ripples will swamp other newspapers. The world's biggest English speaking Sunday tabloid newspaper is dead.
All UK charities have suddenly found themselves facing the same dilemma: do they take up the offer of free advertising space in the final edition of the News of the World, or do they reject association with the toxic brand? Free coverage in what was Britain's highest selling Sunday newspaper? At a time when many charities are facing funding cuts and tough fundraising conditions? Surely that is not such a difficult decision to make?
So the News of the World gasped its last this weekend. And in pubs and parks, in living rooms and at dining tables up and down the land people mull over the significance of the latest revelations over phone-hacking and more.
The latest disclosures about how people working for the News of the World apparently hacked into the phones of Milly Dowler and the families of 7/7 victims have triggered nationwide disgust. It is at times like these that people look to their Prime Minister to face up to the challenges presented, without fear or favour. I am afraid that yesterday David Cameron did not rise to that challenge.
This is a grim day for truth-lovers everywhere. Today sees the demise of the proud publication that once confused being a paediatrician with being a paedophile, leading to one of the former being attacked.
Up until now, News International and the government have sought, and to some extent succeeded, in making the phone-hacking story one that is largely about celebrities.
In the lexicon of journalism the word "unprecedented" has reached cliché status. But I make no apology for using it to describe both the allegation against the News of the World that it hacked into a murdered girl's voicemail messages and the public response to it.