Doyo had been a human rights activist before she became a journalist, but decided to cover the murder ofButbut Kalingapangat (leader)Macli-ing Dulag after his leadership ofthe opposition to theChico River Dam Project.[1] The publication of the work in theManila Bulletin's Panorama magazine led to the firing of its then-editorLetty Jimenez Magsanoc and to Doyo herself being investigated by Marcos' armed forces.[1] The incident proved to be a watershed moment in the mainstream press' coverage of Martial Law, with the media finally being able to publish reports critical of Marcos' authoritarian rule.[7] The coverage earned Doyo her first major journalistic award, the Catholic Mass Media Awards trophy, given to her byPope John Paul II during his visit to the Philippines in 1981.[6]
Beginning with the Chico River Dam Project story, Doyo's career as journalist has spanned four decades. She has written special reports and features, and she writes a popular regular column titled "Human Face" published in thePhilippine Daily Inquirer.[8]