Tina Rosenberg is a Pulitzer Prize-winning journalist and author. She co-authors the “Fixes” column in the New York Times “Opinionator” section. She is a former editorial writer for the New York Times and a contributing writer for the New York Times Magazine. She is the co-founder of Solutions Journalism Network, an independent, non-profit organization working to legitimize and spread the practice of solutions journalism: rigorous and compelling reporting about responses to social problems. Her books include Children of Cain: Violence and the Violent in Latin America and The Haunted Land: Facing Europe’s Ghosts After Communism,which won the Pulitzer Prize and National Book Award. She has written for dozens of magazines, including The New Yorker, Rolling Stone, Foreign Policy and The Atlantic. She is the author, most recently, of “Join the Club: How Peer Pressure Can Transform the World.” Follow her @tirosenberg.