After the drama that was Murdoch's appearance in front of the Parliamentary Select Committee, the slow and steady unravelling of the phone hacking scandal had drifted to the peripheries of media once again, but now seems to be returning to prominence.

The story seems to continuously deepen in complexity, although The Guardian's handy flow chart, which explains the long string of events which have lead to the current situation, is a great help in making sense of the situation.

It now appears that a potentially damning new piece of evidence has appeared.

A letter written by The News of the World's former royal correspondent Clive Goodman in 2007, after he was released from a 4 month prison sentence for phone hacking, has been released, with some redactions. It further implicates Andy Coulson and other senior NoW staff in the scandal, asserting that Coulson and others had knowledge of the hacking.

As The Guardian reports, one member of the Select Committee, M.P. Tom Watson stated: "This is one of the largest cover-ups I have seen in my lifetime".

Sources: The Guardian (1) , (2), ProPublica