See Steven Pinker's "The Better Angels of our Nature"(http://www.amazon.com/The-Better-Angels-Our-Nature/dp/0143122010 http://www.amazon.com/The-Better-Angels-O

See Steven Pinker's "The Better Angels of our Nature"(http://www.amazon.com/The-Better-Angels-Our-Nature/dp/0143122010 http://www.amazon.com/The-Better-Angels-Our-Nature/dp/014312...) to see why I remain much more optimistic than you.