A candidate shows fighting skills for a test held to recruit flight security officers for Hainan Airlines, China's fourth largest airline, Taiyuan, northern China's Shanxi province on March 16, 2013. The airlines favored applicants who are graduates from military or police school or veterans. Besides appearance, applicants' manners, psychological quality in the interview, fighting skills and physical strength are also examined, which are essentials for flight security officers to deal with any emergent matter and security threat immediately. (Photo/ Imagine China )