Rick says-- I first read about "gray goo" in 1985 in Eric Drexler's Engines of Creation that I had an advance copy of from Mike Darwin in cryonics... so Mike who I think worked at a gas station in Flagstaff.... and knows and associates with Charles Platt of  cryonics and science fiction fame... might know what's really going on... as well as Max More, pres. of Alcor who recently quit... and may have gone to Camp Verde with Doug Platt... into a survivalist mode... pure spec on my part.... but why not ask ERIC DREXLER what's going on?