Group 1: Key Developments in Security Check Efficiency - During the Spring Festival travel season, Xi'an Station, a key railway hub in Northwest China, has improved its security check efficiency significantly, processing approximately 89,000 passengers daily [1] - The introduction of new intelligent "leg scanning" security equipment has led to a 30% increase in accuracy and a 40% improvement in overall security check efficiency [5] - The station now features 47 leg scanning devices that cover the entire security check process, allowing for a complete check in under 3 minutes from entry to security [7] Group 2: Innovations at Capital Airport - Capital Airport, a major transit hub during the Spring Festival, has implemented the "Easy Security Check" channel, which significantly reduces security check times for over 200,000 daily travelers [9] - The "Easy Security Check" channel utilizes CT scanning equipment and millimeter-wave body scanners, streamlining the security process and enhancing the accuracy of checks [11] - The newly introduced A3 millimeter-wave scanners can complete a person's check in about 3 seconds, generating holographic images and marking areas for further inspection, thus ensuring passenger privacy [15]