From The Toronto Hearings DVD.

Case Report: Lung Disease in World Trade Center Responders Exposed to Dust and Smoke: Carbon Nanotubes Found in the Lungs of World Trade Center Patients and Dust Samples

http://ehp03.niehs.nih.gov/article/info:doi/10.1289/ehp.0901159

Kevin Ryan: Experiments with nanothermite

http://www.youtube.com/watch?v=O66UyGNrmSI

See Harrit's presentation in full here:

http://www.ustream.tv/recorded/17190055