Why Kerviel is so unsettling By Christopher Caldwell Published: February 8 2008 18:27 | Last updated: February 8 2008 18:27 “You lose a sense of the amounts when you’re doing this kind of job,” the rogue trader Jérôme Kerviel told Agence France-Presse this week. “Everything gets dematerialised. You can get carried away.” It is possible Mr Kerviel was just using the interview to set up his legal defence. French authorities have accused him, after all, of forgery and breach of trust. Mr Kerviel had risen from the back office at Société Générale to become a “warrant arbitragist”. His job was...