Preparing America's children for the 21st century is among our most important national priorities. Today's children face the promise of a new century of unparalleled opportunity in which new technologies, improvements in health, expanding economies, and other advances create the hope that their future will be the brightest of any generation in history. Yet, too many of them face obstacles that obscure that bright future, including poverty, violence, child abuse, limited educational opportunity, and unhealthy behaviors. …