TWO weeks ago, Joi Kahar was very preoccupied indeed. The thoughts of this young Jakarta businessman were fixed on the situation thousands of kilometers away, in Tanjung Balai Karimun. It was there that his leased ship, Go Rio II Ho, had been seized by Customs and Excise officials, and charged with not paying export taxes. If the charge was upheld, then he could say goodbye to his career. His ship, which was sailing under the Korean flag, wou