On March 10, 2026, Beijing Time, according to Wired magazine, over 30 employees from OpenAI and Google submitted an amicus curiae brief supporting Anthropic's lawsuit against the U.S. government. Previously, federal agencies such as the U.S. Department of Defense identified Anthropic as a 'supply chain risk,' restricting its collaboration with military contractors. This measure took effect after Anthropic's negotiations with the Pentagon broke down. Anthropic is seeking a temporary restraining order to continue working with military partners during the litigation. Signatories of the brief include Google DeepMind's Chief Scientist Jeff Dean, among others, who participated in their personal capacities and do not represent their companies' positions. The brief argues that the Pentagon's decision undermines U.S. innovation and competitiveness, stifles professional discussions on the pros and cons of AI, and endorses Anthropic's proposed red lines for AI use, including banning large-scale domestic surveillance and the development of autonomous lethal weapons.