Ok, that’s really strange:
“ Note: there are no photographs; nor did I take a notepad, so I’m writing this from memory. Cameras were verboten — not because of security, but as an operational precaution. For starters, some embedded controllers in racks in the auxilliary deisel generator control rooms have EPROMs which have been known to be erased by camera flashes in the past, triggering a generator trip; for seconds, we had to wear protective clothing — try explaining to a visitor that their expensive Nikon has been contaminated and needs to be left behind!“
http://www.antipope.org/charlie/blog-static/rants/nothing-like-this-will-be-buil.html via http://blog.fefe.de/?ts=b35d9d4a