Rupert Murdoch’s usually chatty Twitter has fallen silent. There was support for immigration after US Independence Day, but nothing since.

So we look forward to Murdoch reappearing at the UK culture, media and sport select committee over the ongoing fallout from systemic phone-hacking and bribes paid at his newspapers. Metropolitan police are now investigating a leaked taped conversation between Murdoch and his staff that would seem to contradict the chairman’s earlier testimony of innocent ignorance. As a company statement reads:

“Mr Murdoch welcomes the opportunity to return to the select committee and answer their questions. He looks forward to clearing up any misconceptions as soon as possible.”

Misconceptions? Well, that’s one word for it. Others might deduce that Murdoch was telling a few little fibs given we now know he told his staff he was aware of a culture of paying police officers for stories “existed at every newspaper in Fleet Street”; “that’s been going on a hundred years, absolutely”. Not to mention that while the company offered support to police, he thought the investigation was “totally incompetent”.

So which is it, Rupert? Did you know or didn’t you? How serious are you about cleaning up dodgy journalistic practices that have seen more than 42 people charged? Feel free to tweet your answer …