BEIJING – A 13-year-old American boy who made a rare visit to Pyongyang says officials there welcomed his idea for a "children's peace forest" in the demilitarized zone dividing North and South Korea, although they said it would only happen if the countries signed a peace treaty first. Jonathan Lee returned Thursday from an eight-day visit to the reclusive country during which he was taken on a tour of the DMZ. A hoped-for meeting with North Korean leader Kim Jong Il did not materialize, although Lee said the officials forwarded to Kim a letter from him.