Sexting. Cyberbullying. Narcissism. Social media has become the dominant force in young people's lives, and each day seems to bring another shocking tale of private pictures getting into the wrong hands, or a lament that young people feel compelled to share their each and every thought with the entire world. Have smartphones and social media created a generation of self-obsessed egomaniacs? Absolutely not, Donna Freitas argues in this provocative...