South Korean prosecutors have indicted three South Korean nationals, identified only by the surnames “Bang,” “Kim,” and “Hwang,” for “bringing in methamphetamine from North Korea and attempting to assassinate” Hwang Jang-Yop, North Korea’s highest-ranking defector until his death in 2010. Let’s unpack these two criminal conspiracies one at a time, starting with the meth: The 69-year-old, identified only by his family name Bang, and two others have been detained for producing 70 kilograms of methamphetamine at a North Korean factory...