The United States has imposed partial restrictions on intelligence sharing with South Korea after Chung Dong-young, the South Korean unification minister, publicly identified Kusong as a suspected North Korean nuclear site. Chung made these remarks based on publicly available research, which he defended as not classified information. President Lee Jae Myung backed Chung, stating that the existence of Kusong had been widely reported prior to the minister's comments. The US's decision to limit intelligence sharing follows concerns from American officials about unauthorized disclosures. Despite these restrictions, military readiness and surveillance of missile activity remain unaffected. The situation has sparked a political backlash in South Korea, with conservative opposition parties labeling Chung's comments as a security disaster and calling for his dismissal. The US's actions also reflect broader tensions in the alliance, influenced by ongoing legislative issues regarding the management of the demilitarized zone. Meanwhile, North Korea's nuclear capabilities are believed to be expanding, as noted by Rafael Grossi, head of the International Atomic Energy Agency.