Infighting is hampering the military forces fighting ISIS in Northern Iraq. Kurdish officials detained and then released Haider Shasho, a Yazidi resistance leader. The dispute has sidelined thousands of troops. With us from Kurdistan is Christine van den Toorn, director of the Institute for Regional and International Studies at The American University of Iraq-Sulaimani (AUIS). She’s also founder of the research and analysis company called ‘The Primary Source’. PHOTO: In this Dec. 21, 2014, file photo, Yazidi fighters gather on the summit of Mount Sinjar as they head to battle Islamic State militants, in Iraq. (AP Photo/Dalton Bennett, File)