Anthropic has filed a lawsuit in federal court challenging the Trump administration’s decision to blacklist the company and label it a national security threat. Anthropic claims the move is retaliation for refusing Pentagon demands to relax AI safety protocols, specifically to remove safeguards prohibiting use of its Claude system for mass surveillance or fully autonomous lethal weapons. The administration subsequently ordered federal agencies to stop using Anthropic products and designated the company as a supply chain risk, a term usually reserved for software from foreign adversaries with potential malware. Anthropic argues these actions lack legal authorization and violate constitutional protections, particularly the First Amendment. The company seeks a court order to block enforcement of the blacklist and overturn the national security designation. Critics note the government’s justification appears weak and raises broader concerns about using national security claims to suppress protected activities. Despite being blacklisted, Anthropic’s technology remains in use within some military operations. The legal case raises significant questions about the limits of executive power and protection of civil liberties in the context of AI and national security.