` We have only had three or four other situations ... in the billions , and that is exactly what happened , '' he said . UK police question a suspected rogue trader at Swiss bank Zurich for a second time . Credit rating agency Moody 's says it is reviewing accounts for a possible downgrade . UBS itself reported the rogue trader to police , officers say . British media identify the arrested man as Kweku Adoboli .
UK police question a suspected rogue trader at Swiss bank Zurich for a second time . Credit rating agency Moody 's says it is reviewing accounts for a possible downgrade . UBS itself reported the rogue trader to police , officers say . British media identify the arrested man as Kweku Adoboli .