Japan’s Osaka prefecture has dropped a controversial plan to charge foreign tourists a special tax after an expert panel said the proposal was legally and practically unworkable.Osaka Governor Hirofumi Yoshimura had proposed the tax in March last year as a way to require travellers to share the cost of mitigating overtourism in the prefecture.However, after studying the feasibility of the plan, a panel of university professors and other experts told the local government that there were...