It is big part of GreenPeace and Fiends of Earth programs to raise money...people are tired of global warming and the unending campaigns against GM, so this is a new area of trying to raise funds for the environmental groups...anti-nanotechnology..GreenPeace and Fiends of Earth have been campaigning against nanotechnology this for over three years and they recruited people like Prince Charles to lead the charge.
It is big harder for them to attack nanotechnology, because nanotechnology has a lot more potential in fighting some major health problems, not just with vaccines. So GreenPeace, etc. try to hook in the anti-vaccine folks, which of course, include some conservatives.