Mr. Fulford and Mr. Crayford, and another individual known only as "an American lawyer", have been involved in an exchange of open letters which has been reproduced RMN posts. A list of links is provided below. The last response from Mr. Crayford contains a detail which I find curious from a technical standpoint:

Another fact Mr Fulford is that photographs taken inside any registered depository will turn “Black” and you will see nothing. Therefore these Treasury Boxes are not in a registered depository but have been removed by someone from a registered depository into some store room, warehouse, or similar, which means theft on a grand scale of Global Debt Facility Assets.

Now, for photographs taken to turn black would require that a film camera is being used. Such would be a rather rare occurrence these days. Furthermore, turning the film black would require that the camera be exposed to high energy ionizing radiation such as X-rays or gamma rays. This might occur if the camera is passed through a specialized airport-type scanner. If a digital camera was used, I know of no technology that could turn photos on the card black. It would be necessary to use enough hard radiation, or an EMP, to electronically destroy the memory card. This would also render the camera non-functional. Perhaps that is what Mr. Crayford is referring to, as what would happen in a legitimate Global Debt Facility repository. Just some musings on my part.

Now the links to the recent back and forth:

There were a couple of letters addressing Mr. Crayford from "an American lawyer", the second of which made reference to Mr. Fulford:

http://www.rumormillnews.com/cgi-bin/forum.cgi?read=43793

Mr. Crayford responded to that 2nd letter, including comments about Mr. Fulford:

http://www.rumormillnews.com/cgi-bin/forum.cgi?read=43808

Mr. Fulford sent a brief response to that:

http://www.rumormillnews.com/cgi-bin/forum.cgi?read=43873

Then came Mr. Crayford's second response, specifically to Mr. Fulford, which includes the section I quoted above:

http://www.rumormillnews.com/cgi-bin/forum.cgi?read=43892