North Korea’s Kim Yo-jong, the powerful sister of leader Kim Jong-un, condemned a G7 call for the country’s denuclearisation as a violation of its constitution and an infringement of sovereignty, state media KCNA said on Thursday. Kim said denuclearisation was an “irreversibly finalised agenda” that could never be realised, and that nuclear possession was North Korea’s core interest and an irreversible line, the statement carried by KCNA said. “Denuclearisation is the line of no retreat that...