Eamonn McCann - It would surely be perverse of Radovan Karadzic to challenge Tony Blair for the presidency of the EU and risk splitting the war criminal's vote. A record as a war criminal will hardly enhance any candidate's chances. But neither does it seem to be widely regarded as an impediment. "There should be some mistakes too big to recover from," muses Guardian columnist Jackie Ashley. "But (that) is not quite the end of the matter. If politicians have to struggle with competing evils...