15 December 2008 Rogue Nation Explanations of significant losses at investment firms are often attributed to rogue traders. These are traders who have schemed to defeat security measures. These rogues extended their trading portfolios credit exposure far beyond the limits of compliance, racking up substantial losses to be taken, if not risking the actual solvency of their firms. If they do not incur losses they are often not discovered. It is the losses that precipitate the collapse. Nick Leeson of Barings, Toshihide Iguchi of Resona Holdings, Yashuo Hamanaka at Sumitomo, John Rusnak at Allied Irish Banks, Luke Duffy of Australia...