North Korea boosting ability to make nuclear arms: UN watchdog

North Korea is showing a “very serious increase” in its ability to produce atomic weapons, the head of the UN nuclear watchdog said on Wednesday on a visit to Seoul. The diplomatically isolated north is believed to operate multiple facilities for enriching uranium, a key step in making nuclear warheads, South Korea’s spy agency has said. They include one at the Yongbyon nuclear site, which Pyongyang purportedly decommissioned after talks but later reactivated in 2021. “