FILE - In this May 31, 2013, file photo, riot police use tear gas and pressurized water to quash a peaceful demonstration by hundreds of people staging a sit-in protest to try and prevent the demolition of trees at Gezi Park in Istanbul, Turkey. During the height of Turkey's summer of upheaval, more than a dozen Turkish doctors interviewed by The Associated Press say authorities assaulted them with tear gas, pressured them to reveal the names of patients and ignored calls for resources. (AP Photo/Emrah Gurel, File)