A person who appears to be a high-ranking North Korean official arrived at Beijing International Airport and went downtown by car on Monday, a source close to the matter said.The car was one that China usually uses for state guests, the source added. At the airport, an official of China's ruling Communist Party and North Korea's ambassador to China greeted the delegation led by the high-ranking official, the source said.It was not immediately clear who is visiting China from North Korea. But taken together, the developments indicate that high-ranking officials of the two countries may meet …READ FULL ARTICLE