We need young people to be civically engaged in order to define and address public problems. Their participation is important for democracy, for institutions such as schools, and for young people themselves, who are more likely to succeed in life if they are engaged in their communities. In The Future of Democracy, Peter Levine, scholar and practitioner, sounds the alarm: in recent years, young Americans have become dangerously less engaged. They are tolerant, patriotic, and idealistic, and some have invented such novel and impressive forms of civic engagement, as blogs, "buycott" movements,...