A carjacker lurking in a shopping mall parking lot. An abusive husband pounding on the door. A disgruntled employee brandishing a gun. These days, no one is safe from the specter of violence. But according to Gavin de Becker, everyone can feel safer, act safer, be safer -- if they learn how to listen to their own sixth sense about danger. De Becker has made a career of protecting people and predicting violent behavior. His firm handles security for...