The head of South Korea's police on Tuesday visited a pair of South Korea-held islets in the Sea of Japan claimed by Japan, a source close to the police said.Kim Chang Yong, commissioner general of the National Police Agency, flew to the territory, known as Dokdo in South Korea and Takeshima in Japan, in what local media said was the first visit by an incumbent police agency chief in 12 years.The visit was reportedly aimed at offering encouragement to police officers who are stationed there.South Korean senior officials and lawmakers have visited the islets as a way to reassert South Korea'…READ FULL ARTICLE