SEOUL, South Korea (AFP) — Nuclear-armed North Korea appears to have restarted its plutonium-producing reprocessing reactor in a “deeply troubling” development, the UN atomic agency has said, a possible sign Pyongyang is expanding its banned weapons programme. The development on the 5-megawatt reactor in Yongbyon — North Korea’s main nuclear complex — comes with nuclear talks between Pyongyang and Washington at a standstill. North Korean leader Kim Jong Un offered to dismantle part of the […]