He is NOT welcome for an extended stay in Scotland. As for a stopover, Prestwick would be a convenient change-over point from the USAF VC-32 (ie 757) to a private aircraft for the final leg to Russia. He could also leave his Secret Service detail in Scotland.

— Lord Piltdown (@jimreynolds54) January 4, 2021

Forgot to add that Erik Prince could provide security for the short period before the FSB takes charge of him.