Early education and care : what is the federal government's role? : hearing before the Subcommittee on Education and Early Childhood Development of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Ninth Congress, first session, on examining the federal role to improve the effectiveness and coordination of childhood education programs, including the Head Start Program, the Child Care and Development Fund (CCDF), and increasing food security and reducing hunger, April 20, 2005.