FILE PHOTO-Taiwan's President Tsai Ing-wen attends the launching ceremony of Narwhal, its first domestically built submarine, in Kaohsiung, Taiwan September 28, 2023. REUTERS/Carlos Garcia Rawlins/File Photo Acquire Licensing Rights TAIPEI, Oct 2 (Reuters) - Taiwan prosecutors said on Monday they are investigating accusations that people tried to interfere in the island's submarine program and that details about it were leaked, in what would be a serious breach of security. Taiwan unveiled its first domestically developed submarine on Thursday, a major step in a project aimed at strengthening the island's defence and deterrence against the Chinese navy, though it won't enter...