Nano technology could be used to cure brain cancer
how can one be against that
Nano Particles
as small as 1 000 atoms, the nanometer is one-billionth (1/1000 000 000) of a meter
a human hair is 80 000 nanometers thick and a virus 100 nm
nanoengineers can shrink a substance down to as little as 1 nm
at that size, particles can cross skin, enter the bloodstream or cells ~ even dna
 

GERMANY
German authorities, writes dw-world, have warned of the risks posed by nanotechnology when used in food, clothing, cosmetics and other products. The promising potential of the technology comes with a risk for health and environment.
Germany's Federal Environment Agency has advised consumers against using such products until their long-term effects on people's health has been carefully studied.

JAPAN
Japanese study [as translated]
It has misgivings about the danger to the human body of the nano particle is higher than large particle
It is still insufficiently investigated, which danger proceeds from some nano-particles. The research at carbon nano-tubes and Buckminster Fullerenen, the results is particularly intensive is however not consistent. It is accepted by nano-tubes that they could have similar, needle-shaped structure the same effects in the lung due to their asbestos, which could not be occupied however yet clearly. Altogether the effect investigated in the last years of the artificially manufactured nano-particles on organisms, above all the long-term effects, not yet sufficiently, is in order to be able to finally judge the degree of their danger.

INDONESIA
SBS Radio - Indonesia
Dr Ika Puspitasari, lecturer from UGM and pharmacologist specialising in neuro reproductive at Monash University talking about the danger of nano particle ...

TAIWAN
Taiwan Institute of Occupational Safety and Health, IOSH English Vision
Hidden Dangers in the Nanotech Industry
Products bearing the label “nanotechnology” are seen everywhere in the market
numerous nanotech companies in Taiwan have suffered dust-explosion accidents
the ease at which nano particles floating about in the atmosphere can invade the body is ignored

AUSTRALIA
The Australian Council of Trade Unions answers why unions are concerned.
Download ACTU's paper on nanotechnology in pdf format

Check the Woodrow Wilson International Center for Scholars' nanotech project