After 13 years of negotiations, Japan has approved its first shipment of genetically-modified Rainbow papayas from Hawaii. ”The fact that the Japanese have tested it to the nth degree and evaluated its food and environmental safety proves it’s a good product,” said Rod Yonemura, consultant to the 160-member Hawaii Papaya Industry Association based in Hilo, capital of Hawaii’s Big Island. The Dec. 5 shipment consisted of 1,248 5-pound cases for sale and 32 cases for sampling at Coastco Japan, Yonemura said.