... America's suburbs are now more likely to be home to minorities, the poor and a rapidly growing older population ... Ten states, led by Arizona, surpass the nation in a "cultural generation gap" in which the senior populations are disproportionately white and children are mostly minority. ... recommendations: affordable housing and social services for older people in the suburbs; better transit systems to link cities and suburbs; and a new federal Office of New Americans to serve the education and citizenship needs of the rapidly growing immigrant community.