A video installation built around the testimony of a former Japanese soldier on the killing of civilians and sexual assault in wartime China will go on display in London in October, even as its creator struggles to find a museum willing to exhibit the award-winning work in Japan.Created by contemporary artist Meiro Koizumi, “The Angels of Testimony”, has won acclaim overseas, but Japanese museums have been reluctant to exhibit the work, which confronts memories of violence committed by Japanese...