Larry SiemsLarry Siems is the chief of staff for the Knight First Amendment Institute at Columbia University and a previous director of Freedom to Write and International Programs at PEN. His articles and books address immigration, human rights, and freeexpression. He edited, annotated, and introduced Mohamedou Ould Slahi’s memoir, Guantánamo Diary. Author photo by Donna F. Aceto. Read More Read Less