Core Viewpoint - Recent investigations by national security agencies have uncovered a criminal network involved in the illegal trade of military-related items on second-hand online platforms, effectively eliminating potential national security risks and safeguarding military secrets [1] Group 1: Criminal Activities - Liu, a seasoned "military enthusiast," exploited his waste collection business to gather and sell military items for profit, crossing legal boundaries due to financial incentives from associates [2] - The rise in demand for military collectibles has led to a network of "military enthusiasts" and waste collectors collaborating to provide a full-service operation for sourcing, pricing, and reselling military items [4] - Liu expanded his role from supplier to direct seller of various used military materials through his online store, even using live streaming to attract more buyers, which ultimately led to his exposure and reporting by netizens [4] Group 2: Law Enforcement Actions - National security agencies, using Liu as a starting point, identified and shut down over 40 online stores involved in the illegal sale of military materials, including communication devices and guidance systems [5] - The illegal market for military equipment has seen a troubling trend where items with proper documentation are valued higher, leading to a dangerous pursuit among collectors for these "identification documents" [5] - The actions of individuals like Liu and his associates have violated laws regarding the handling of state secrets, which will result in severe legal consequences for them [5] Group 3: Public Awareness and Reporting - National security agencies emphasize the importance of public vigilance in maintaining national security, urging citizens to report any suspicious activities related to the illegal trade of state secrets [6]