This week Jon is joined by Hassan Hassan, director of the program on non-state actors in geopolitics at the Center for Global Policy and the editor-in-chief of its new online journal, Newlines Magazine. Hassan talks to Jon about his late colleague, Hisham al-Hashimi, and the research Hisham was conducting on the rise of Shi'ite militias in Iraq. Then, Natasha, Will, and Jon talk about the effects of Iranian-backed militias in Iraq.