Bankers in London and New York will be targeted this week at the launch of a new transatlantic campaign to reinstate historic usury laws restricting the interest rates charged by loan sharks and credit card companies. Usury is deplored in the three great Abrahamic faiths. In his encyclical letter last week, Caritas in veritate, Pope Benedict XVI said that the weakest and most vulnerable members of society "should be helped to defend themselves against usury"