We think fear of runaway nanobots, or "gray goo", is more of a public issue than a scientific problem.

Recent fictional portrayals of gray goo, as well as statements by scientists such as Richard Smalley, are signs of significant public concern. But although biosphere-eating goo is a gripping story, current molecular manufacturing proposals contain nothing even similar to gray goo. The idea that nanotechnology manufacturing systems could run amok is based on outdated information.

You can read our full comments on this issue at www.crnano.org/BD-Goo.htm. I'd be interested to hear if you agree with our point of view, and if you think we are addressing the public concerns effectively.