Two weeks in China have left me deeply disturbed about future relations between Japan and China. A smooth and cooperative Japan-China relationship is essential to regional peace, stability and prosperity. Yet increasing interaction at just about every level of the relationship has generated as many irritants as insights into the other country. I’m not sure that increased contact between the two countries will create the understanding needed to build that relationship, but increasing integration will help. As in a boxing match, it is harder to punch while in a clinch.