Ah, I know what they’re using for that “exclusion zone” map - it’s from about 2011, and the BBC had it on their web site as a set of 16 tiles and a javascript interface. There were also some pop-up place names.
I have it downloaded, and I composited it together into a single large image. I don’t feel comfortable about putting it up anywhere, though; it’s clearly all rights reserved by the BBC.