The arrest of Mikhail Khodorkovsky, the head of the Yukos oil company, on 25 October 2003, was a key turning point in modern Russian history. At that time Khodorkovsky was one of the world's richest and most powerful men, while Yukos had been transformed into a vast and lucrative oil company that was set to go global. On all counts, this looked like a success story, but it was precisely at this moment that the Russian authorities struck. After...