The Turkish government has extended its crackdown on suspected followers of US-based Turkish cleric Fethullah Gulen. DW's correspondent in Istanbul talks to a former high-ranking police officer who claims even the police was infiltrated by Gulen supporters. Gunnar Köhne also meets relatives of detained soldiers who say they're innocent. For more go to http://www.dw.com/en/top-stories/s-9097
