The US Artificial Intelligence Safety Institute (AISI), housed within the National Institute of Standards and Technology (NIST), announced on 20 November 2024 the release of its first synthetic content guidance report, NIST AI 100 4 Reducing Risks Posed by Synthetic Content: An Overview of Technical Approaches to Digital Content Transparency. “Synthetic content” is defined in President Biden’s Executive Order on Safe, Secure, and Trustworthy AI as “information, such as images, videos, audio clips, and text, that has been significantly altered or generated by algorithms, including by AI.”