> Carl Sagan expressed essentially the same idea in 1994 -- that the development of asteroid-deflecting nuclear weapons would be more likely to destroy the worl

> Carl Sagan expressed essentially the same idea in 1994 -- that the development of asteroid-deflecting nuclear weapons would be more likely to destroy the world than to save it. He also talked about this in his book Pale Blue Dot around the same time. He found it darkly ironic, I think. Technologies like spaceflight and nuclear power and advanced biology are necessary for the long-term survival of the human species. Yet presently, it seems they are more likely to be misapplied and destroy us.