Takanori Tezuka, a TV director at Shin-Etsu Broadcasting Co., works in an office in Nagano Prefecture, central Japan.... Questioning should be the most valuable lesson we can learn from the tragedy," Tezuka said in a recent interview ahead of the 90th anniversary of the Manchurian Incident in 1931, which preceded the establishment of Manchukuo and marked the beginning of Japan's military involvement in China.... Local leaders, such as Mori Kurumizawa, a former mayor of Kawano village in Nagano