Read this email exchange at Guido Fawkes https://order-order.com/2017/06/06/diane-abbott-apparently-duped-alleged-email-prankster/ and ask yourself what Diane Abbott is saying. Did she lie to the BBC? Do the BBC care? If this was the a Conservative senior politician, this would be a scandalous headline on the BBC but as it's a senior Labour politician there will be no word of criticism.
The BBC, as ever, is operating as the media wing of the Labour Party rather than as an independent media organisation. The bias disgusts me.