It could be questioned for authenticity because of the handling of material with nuclear dust still measurable, then sitting down in such a place and biking off the site without going through some decontamination. If it is any thing like a dirty-bomb, by leaving on a bike it would seem possible to spread the dust. That was my guess; have not heard others. brian (interesting tour and great narrative.) brian thomas carroll: research-design-development architecture, education, electromagnetism http://www.electronetwork.org/bc/