“We accept U.S. assurances on rendition in good faith. But if others have definitive evidence of rendition through the U.K. or our overseas territories, including Diego Garcia, then we will raise it with the U.S. authorities.”

I say old chap, have you been using our island for this ?
That one where we conducted a complete ethnic cleansing of a few “Tarzans and man Fridays” so we could turn an inhabited tropical island into an uninhabited military staging post. You’ve not used THAT island for anything untoward, have you old boy ?