The use of hacked data is a growing ethical challenge for investigative journalists. But responsible use of this information can lead to public interest revelations that would otherwise stay hidden.
As countries call for change, nine documents from around the world show how journalists in an international reporting effort built the first comprehensive account of wrongdoing by volunteer diplomats known as honorary consuls.
Honorary consuls were meant to foster ties between countries. Accused terrorist financiers, arms traffickers and drug runners are among those who have wielded diplomatic protection, a global investigation finds.