The dog that isn't barking is WTF did our security services know and pass on to Starmer ????
Call me naive, but I imagined that all and any senior government appointees are subject to some sort of vetting. Now if that vetting did not throw these things up then obviously Starmer could not have known. But the lack of discussion is telling.
It's a similar situation for the royal protection team. How did they not realise they were ferrying a nonce around the world ? Or did they, but no one cared ?
I'm always suspicious when no one is asking the questions I would ask.