The National Security Division of the U.S. Department of Justice issued a reminder warning foreign students in the United States not to act as unregistered foreign agents, stating that violators will face penalties including loss of legal status, deportation, and failure to complete their studies. [Follow-up · September 18, 2026] On September 18, the U.S. Department of Homeland Security issued a reminder requiring foreign students to ensure they do not engage in foreign agent activities that legally require registration, or face deportation and the inability to complete their studies. Previously, on September 16, a U.S. Department of Justice announcement reiterated that individuals acting under the direction of foreign governments or entities must register in accordance with the law, or bear civil or criminal liability, while emphasizing that this regulation does not affect constitutionally protected freedom of speech.