In the summer of 2014, ISIS forces swept through parts of Iraq that were home to the Yazidi people. This is an ethnic minority that has lived in Northwestern Iraq for centuries -- and suddenly they were under attack.  What transpired was a genocide. Men and boys were murdered for being Yazidi; women and girls were kidnapped and taken as sex slaves for ISIS fighters.     At the time, my guest today Emma Beals was reporting from Erbil, a city in the Kurdish region of Iraq near to where these atrocities were taking place. She was reeling from the news that a fellow journalist, James Foley, had been brutally murdered when she received a call from a human rights organization asking her to investigate rumors of a massacre in the Yazidi town of Kocho.  Emma Beals describes whats next in a series of powerful essays, titled Kocho's Living Ghosts.There were 19 surviving men from the town's original population of 1,888. In our conversation Emma Beals recounts the massacre through the testimony of the survivors she interviewed.