You knew I'd be citing the Grauniad because they're the only national newspaper that was covering the story in depth. (Until The Independent jumped on board, late in the day.) The Murdoch press and their rival tabloids were all keeping mum, and The Telegraph wasn't touching it either (possibly out of a misplaced sense of loyalty to the PM).

Politicians and rival media outlets are afraid of the NewsCorp empire. They own 30% of the UK newspaper market and a big chunk of its TV programming, and they have long memories. Not people you would want to have holding a grudge against you if you worked in that industry or had to run for re-election.