By Zeynep Pamuk. “The Gezi Park movement is fundamentally about demanding the right to demand rights.“ A Letter From Istanbul. _______________________________________________________________________ Last Saturday afternoon, a sea of people with flags in one hand and gas masks in the other assembled in Beşiktaş—a central neighborhood in Istanbul—ready to march to Gezi Park. A young man standing on top of a minivan was yelling directions into a megaphone: “Please leave all party fla...