While it may be the stuff of science fiction today, the advancement of nanotechnology in the coming years will make it a bigger threat to humanity than conventional nuclear weapons, according to an expert. The U.S., Russia and China are believed to be investing billions on nanoweapons research.
"Nanobots are the real concern about wiping out humanity because they can be weapons of mass destruction," said Louis Del Monte, a Minnesota-based physicist and futurist. He's the author of a just released book entitled "Nanoweapons: A Growing Threat To Humanity."
One unsettling prediction Del Monte's made is that terrorists could get their hands on nanoweapons as early as the late 2020s through black market sources.