In general, the Cold War’s flash points are no longer hot – the USSR collapsed and so did its empire, Taiwan and mainland China are if not the best of friends, at least get on and trade with each other, and Cuba seems to have become less of an irritant. But one Cold War frontier remains as dangerous as ever, and that is the border between North and South Korea.No peace agreement has ever been signed between North and South Korea. The armed truce means that, in theory, the war could go hot at any…
