A federal judge in Argentina on Friday indicted former President Cristina Kirchner and more than a dozen others in a case involving allegations that late in her term Argentina’s central bank illegally traded derivatives, costing the country billions of dollars. In a 147-page ruling, Federal Judge Claudio Bonadio charged Mrs. Kirchner with the crime of “unfaithful administration,” essentially saying she defrauded the public. An attorney for Mrs. Kirchner hasn’t responded to repeated requests to comment about recent allegations against her and efforts to contact Mrs. Kirchner through the office of her son, a member of Congress, have also been unsuccessful.