“Vegas is where you get married, Reno is where you get divorced,” as the saying goes in the US state of Nevada. State law allowing some legal cases to be conducted more quickly and discreetly than elsewhere in the US means this relatively small city has served as the quiet backdrop to dramatic family fallout over a global media empire. Rupert Murdoch and his family flew in from all over the world to determine how the empire would be divided among his children when the 93-year-old...