As Columbia University faculty engaged in international scholarship and teaching, we are deeply concerned about the arrest of Osman Kavala, one of the most prominent Turkish public intellectuals and a tireless promoter of peaceful international collaboration. Osman Kavala is a colleague and a friend of Columbia of many years. Many of us have collaborated with him on various cultural projects, witnessing his generous leadership in bringing people and cultures together. We have had many occasions to witness Osman Kavala’s importa