What Should We Be Worried About? Real Scenarios That Keep Scientists Up At Night.

Drawing from the horizons of science, today's leading thinkers reveal the hidden threats nobody is talking about-and expose the false fears everyone else is distracted by. What should we be worried about? That is the question John Brockman, publisher of Edge.org ("The world's smartest website"-The Guardian), posed to the planet's most influential minds. He asked them to disclose something that, for scientific reasons, worries them-particularly s...