Monroe, Washington, USA is a long way from Mobberley. Presumably it's a multi-transport link. Ships, planes, trains, trucks, pack mules, who knows? If my purchased film is being x-rayed at each transition loading point, where is the fog?
There's an old basketball gym rat saying: Ball don't lie...
I'm perfectly willing, anxious even, to become more educated on this point by others who know the real story. That's why I'm asking questions. But drawing conclusions after watching an entertainment-based television program carries less weight, at least with me, than the lack of additional film base plus fog density. At best the former is highly subjective, while the latter is highly objective.
Other possibilities? A non-invasive scanning technology using radiation wavelengths and/or strengths to which film (and photo paper) are invisible? Manual inspection of suitably pre-labeled packages and containers? A pre-cleared shipping program wherein the shipper follows a set of fixed security protocols and permanently seals a container at point of manufacture (and possibly also at retail sale), thus assuring safety during transit if the seals remain visibly intact?
So there are potentially other ways to assure security for radiation-sensitive legitimate shipped packages. And it's also possible that some of those ways may actually be currently in effect, but that fact not widely known or publicized for obvious reasons.
I'm just asking why, if everything is being x-rayed indiscriminately in all cargo shipping channels as others have concluded, that after traveling one-third of the way around the world my film has never arrived at my doorstep fogged.
Ball don't lie...
Ken