Fears, questions about N. Korea’s growing nuclear arsenal

FILE - Visitors look at the northern side towards North Korea at the Imjingak Pavilion in Paju, South Korea, Sunday, Feb. 19, 2023. North Korea clams its nuclear weapons are combat ready, but some foreign governments and experts remain skeptical about how close the North has come in obtaining functioning nuclear arsenals. (AP Photo/Lee Jin-man, File)

SEOUL, South Korea — North Korea’s latest missile launches are a demonstration of the country’s avowed ability to use nuclear force against South Korea and the mainland U.S. How immediate is that threat?