Another heir emerging for North Korea besides Kim Jong-un's publicly promoted preteen daughter Ju-ae is unlikely because it would spark confusion within the isolated totalitarian society, according to South Korea's unification minister. During an exclusive 90-minute interview with The Korea Herald on Feb. 23, Unification Minister Kim Yung-ho underscored the "considerable internal instability" brewing within North Korea, a situation catalyzing the early debut of Ju-ae as candi