About two million workers will be employed in nanotech industries, and three times that many will have supporting jobs...Between 1997 and 2005, investment in nanotech research and development by governments around the world soared from $432 million to about $4....By 2015, products incorporating nanotech will contribute approximately $1 trillion to the global economy....Helping the public to perceive nanotech soberly in a big picture that retains human values and quality of life will also be essential for this powerful new discipline t o live up to its astonishing potential....