According to this survey the majority of Americans don't approve of naotechnology
http://www.eurekalert.org/pub_releases/200...w-rca021108.phpI find this sort of attitude to be appalling because whether or not our civilization collapses within the next 100 years or so will depend on how well this emerging science develops. Essentially if your arguing against the development of nanotech your arguing for the collapse of human civilization.
The reason being humans are rapidly using up earths resources, once they run out were boned unless a revolutionary alternative is made such as the ability to construct certain materials without having to rely on oil for example.