North Korea's announcement last week that it has reached the final stages of enriching uranium has increased international concern about the scope of the country's nuclear program. At the same time, Pyongyang said it was also working to expand its PLUTONIUM-based arsenal of atomic weapons, and it's promised to boost its military deterrent against the United States in every way possible. But while Pyongyang has been rattling its sabre on the military front, it's struck a more conciliatory tone in its diplomatic efforts recently - especially in respect to relations with South Korea. Pyongyang recently sent envoys to talks in Seoul - they've eased traffic restrictions along the border, allowed some family reunions to take place, and even sent a team to the capital for the state funeral of South Korean President Kim Dae Jung. Our report looks back at some of the recent developments in relations between the two Koreas.