I've seen a little bit on the CBS thing, I get the 'looking at media stories with a critical eye' approach.
Those stories did echo in our media as well. It's another reason why I can't imagine The Times would print this stuff if they weren't convinced of the authenticity. They are aware of the focus on media accuracy coming both from the things you mentioned and the Hutton Enquiry over here. They know what the reaction of the British Government would be if they were found to be printing stories based on a fabrication. They know how that would impact on their readership in a damaging way.
Look for the bottom line: what's in it for The Times or Rupert Murdoch?
I think Rupert Murdoch is probably a little too busy to be editing every paper and media outlet he owns.
Just my hunch, but with all his cash and his new young wife, I'd say he lets his managers do their jobs.