Core Viewpoint - The article highlights the efforts of the national security personnel in Xinjiang, celebrating the 70th anniversary of the Xinjiang Uyghur Autonomous Region through the microfilm "New Arrivals on the Iceberg," which portrays their dedication to safeguarding the region and its people [2] Group 1 - The microfilm "New Arrivals on the Iceberg" showcases the stories of national security officers in Xinjiang [2] - The officers are depicted as guardians who work closely with various ethnic groups in Xinjiang to strengthen the defense against espionage and infiltration [2] - The narrative emphasizes the officers' commitment to building a robust people's defense line against hidden enemies [2]