In Turkey, it’s been a roller-coaster of a day for opposition activists. It began with the surprise acquittal of a group of protest leaders. They had been facing charges of seeking to overthrow the government of President Recep Tayyip Erdoğan. There wasn’t much time to celebrate, though. Hours later, an arrest warrant was issued for the most prominent of them, a man called Osman Kavala. Reporter Ayla Jean Yackley in Istanbul discusses the day with The World’s host Marco Werman.