After firing its largest-ever missile, North Korea is preparing to conduct a nuclear test, officials and analysts say, reviving a longstanding debate south of the border: should Seoul have nukes too? Pyongyang has conducted a blitz of sanctions-busting weapons tests this year, including launching an intercontinental ballistic missile (ICBM) at full range for the first time since 2017. It was a dramatic return to long-range testing after a years-long pause ...