Japan mayor: Wartime prostitution was necessary - YouTubeJapan mayor: Wartime prostitution was necessary Subscribe to our channel http://bit.ly/AJSubscribe A leading Japanese politician has called the use of sex slaves by Japanese soldiers during world war two a "necessary system". Toru Hashimoto, the Osaka mayor, made the reference to about 200,000 women, mostly Korean and Chinese, who were believed to have been coerced into becoming so-called comfo
