Air Force Academy kendo athlete Esther Kim is one of the nation's best in the Japanese martial art of kendo

Esther Kim is a mild-mannered young woman, an Air Force Academy senior excited to soon start her military career. When she's on the kendo court, however, Kim is ferocious, quick and excellent, as her national championship titles show. My story on Kim for ESPNW.com: http://www.espn.com/espnw/life-style/article/25083288/meet-esther-kim-clark-kent-martial-arts