I was at the science library at UC Irvine and noticed a periodical I thought was interesting.
The article was about nanotechnology and how dangerous it is. The interesting thing is that this isn't the first time I've seen an article addressing concerns about nanotechnology and it's relation to our health.
I think this is an article worth mentioning since nanotechnology is revolutionizing the world.

What do you guys think? are these people just crazy environmentalists or is it a valid point?

The 2 articles I've read so far on the topic:

NRDC: OnEarth Magazine, Fall 2007 - Our Silver-Coated Future

And the New Potential Cancer Causing Agent Is……… Nanotechnology! » Environmental News