Because components differ a great deal in terms of size, raw material bases and manufacturing methods, it's hard to see them as one monolithic industry.

FORBES: Beefing up the rump

The project will ensure that the archive cataloguing and conservation methods are up to date, and that all material has been correctly recorded.

UNESCO: UK National Commission for UNESCO - A relic to a forgotten era: over a century of material documenting the medically incarcerated linked with Wellcome Trust in new project

The case has become a major embarrassment for Canada as its military and government struggle to explain how the former navy officer was able to use such primitive methods to copy and convey his material and remain undetected for so long, our correspondent adds.

BBC: Prison for Canadian navy officer turned Russian spy