Andrew Graham-Yooll: A State of Fear [1986] paperback

For ten hair-raising years, Andrew Graham-Yooll was the news editor of the Buenos Aires Herald. All around him friends and acquaintances were "disappearing". Although the slightest mistake might have caused his own disappearance, he did not shrink from getting firsthand experience of this war of terror; he attended clandestine guerilla conferences, helped relatives trace the missing, and took tea with a torturer who was not ashamed to make the most chilling confessions.