Germany on Wednesday named a former senior judge as special investigator to inspect a list of targets that German intelligence tracked on behalf of the U.S. National Security Agency (NSA), causing a political uproar. Critics have accused Chancellor Angela Merkel's staff of giving the German BND foreign intelligence agency the green light to help the NSA spy on European firms and officials, triggering a scandal that has dented Merkel's popularity. Espionage is an especially sensitive issue in Germany because of abuses in the Nazi and Communist eras.