The Secretary of Health and Human Services, either directly, through grants to States and public and private, nonprofit organizations and agencies, or through jointly financed cooperative arrangements with States, public agencies, and other agencies and organizations, is authorized to provide for activities of national significance related to child abuse prevention and treatment and adoption reform, including operation of a national center to collect and disseminate information regarding child abuse and neglect, and operation of a national adoption information exchange system to facilitate the adoptive placement of children.