The wife of ousted Nissan Motor Co. Chairman Carlos Ghosn has called on an international human rights watchdog to shed light on what she said was his harsh treatment by Japan's "hostage justice" system.Carole Ghosn made the pitch in a letter to Human Rights Watch, her spokesperson told Kyodo News on Sunday, adding it was sent out on Dec. 28."Under Japan's "hostage justice" system, prolonged detention to extract confessions is one of the prosecutors' primary investigative tactics," she said in the letter."In Japan, suspects are routinely and repeatedly interrogated by prosecutors outside the…READ FULL ARTICLE