re: #208 sagehen
Medically supportable. Brain injuries can do that.
Amnesia is certainly and entirely plausible, but what amazed me was that there was no mention of him on the BBC until he had awakened…that make me a bit skeptical.
I am sure he was already sworn to absolute secrecy as part of his job, they just wanted to ensure that he was well aware of that (and probably well rewarded for his silence)