National AI Governance Frameworks

Craft a comparative study of national AI governance models for public administration and the legal system. Evaluate centralized sovereign AI stacks versus open, standards-based ecosystems; discuss governance layers (policy, ethics, auditing, data governance, explainability). Propose a blueprint for piloting AI in state services that protects civil liberties, aligns with constitutional norms, and enables robust public oversight. Include risk-management, incident response, and international cooperation considerations.