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Group 1 - The core concept of the article highlights the successful implementation of the "Easy Security Check" service at Shenzhen Airport, which allows travelers to keep most electronic devices in their bags during security checks, enhancing convenience and efficiency [1][3]. - Shenzhen Airport has upgraded its "Easy Security Check" channels in preparation for the 2026 Spring Festival travel season, introducing new passenger convenience services to improve the overall travel experience [3]. - The latest hand luggage CT scanners utilizing three-dimensional imaging technology have been deployed across all "Easy Security Check" channels, which will enhance the accuracy of inspections and reduce the rate of re-checks, thereby improving the efficiency of the security process [3]. Group 2 - Shenzhen Airport is the first in the country to launch the "Easy Security Check" service, which has received positive feedback from travelers for its smooth experience and high efficiency [1][3]. - There are currently four dedicated "Easy Security Check" channels located in the domestic departure area of Shenzhen Airport, specifically at gates 19C, 20A, 20B, and 20C [3]. - Travelers using the "Easy Security Check" service only need to remove power banks from their bags, while laptops and other items can remain in their luggage, streamlining the security process [3].