Despite growing interest in children's policy and in research regarding childhood bilingualism and language acquisition, the early care and education of linguistically and culturally diverse preschoolers remains a matter of much concern. Relative inattention at the level of policy to the needs and interests of such children is due to several causes, including widely and tenaciously held personal beliefs, political ideologies, misperceptions regarding the lack of a demographic imperative, and disciplinary fragmentation among academics. Four fundamental isssues must be addressed if policy and practice in this domain are to improve. The issues are: (1) socialization, resocialization, and the family/child relationship; (2) modalities of instruction; (3) contextually discontinuous strategies; and (4) sub-system creation versus system reform. Each issue is discussed. Action principles and leadership strategies are presented in hopes of moving an action agenda to ensure that linguistically and culturally diverse preschoolers have access to high quality and developmentally appropriate preschool experiences. Thirty-six references are included. (RH)