The impossible state

“Though it is much discussed and often maligned, precious little is known or understood about North Korea, the world's most controversial and isolated country. In The Impossible State, seasoned international-policy expert and lauded scholar Victor Cha pulls back the curtain, providing the best look yet at North Korea's history, the rise of the Kim family dynasty, and the obsessive personality cult that empowers them. He illuminates the repressive regime's complex economy and culture, its appalling record of human-rights abuses, and its belligerent relationship with the United States, and…