On the eve of World War II, news of an astonishing breakthrough filtered out of Germany. Scientists there had split uranium atoms. Physicists in the United States scrambled to verify results and further investigate this new science. Ominously, they soon recognized its potential to fuel the ultimate weapon, one able to release the energy of an uncontrolled chain reaction. With growing fears that the Nazis were on the verge of harnessing nuclear power,...

"What motivates violence? How can good and compassionate people hurt and kill others, or themselves? Why are people much more likely to kill or assault people they know well, rather than strangers? This provocative and radical book shows that people mostly commit violence because they genuinely feel that it is the morally right thing to do. In perpetrators' minds, violence may be the morally necessary and proper way to regulate social relationships...