Sitting in a U.N. refugee tent in a camp filled with 18,000 refugees, my stomach turns and my eyes are wet, listening to yet one more horrific, unimaginable crime committed against Yazidi children, girls and women. It is Christmas Eve 2015 and this author is outside Dohuk, Iraq, in the Sharya Refugee camp where Yazidis have lived since August 2014, when they fled the ISIS invasion of Sinjar Province.