Brenda, in her own words

Royal protocol apparently dictates that the Queen's conversations should not be revealed, so if Brenda said nasty things about the Chinese at her garden party that were picked up by the only camera crew there (on the Palace's instructions, presumably) then either she or one of her flunkies must have authorised the leak. Similarly, Cameron's unintentionally ironic corruption comment must also have been known to her Maj - it was recorded in Buckingham Palace after all. Aside therefore, from Nicholas Witchell and a few other professional toadying sycophants, neither 'indiscretions' (if that's what they were) merit anywhere near the media coverage they're getting. This has all the feel of a late Summer silly season, rather than serious political cock-up.