A call to Sofia Koller. She is observing the Munich trial for the Counter Extremism Project, an NGO that attempts to disrupt the financial flows of extremist groups. In recent years, Koller has followed a number of ISIS trials, including those involving women defendants. And she noticed a pattern when the treatment of female slaves was discussed. "When it came to gaining an advantage for themselves, the women often accepted the female slaves, sometimes even approving of their purchase," because the slaves did the housework. But also because, unlike a second wife, they posed no competition.