Also on East Asia Tonight (Sep 25), in the lead up to Japan's LDP leadership race to replace PM Fumio Kishida, we spotlight a former defence minister making his fifth attempt at the top job; Beijing investigates the parent company of Calvin Klein and Tommy Hilfiger over their boycott of Xinjiang cotton that could see the firm blacklisted; and Chinese border police reportedly being given quotas to identify and expel illegal migrants, making it tougher for North Koreans in China to evade capture.