Coming up on today’s show:

• This week, Defense Secretary Ash Carter announced that Cybercom would be ramping up efforts. What would a cyber war against ISIS look like? For answers, we turn to Shane Harris, senior correspondent for The Daily Beast and author of “@War: The Rise of the Military-Internet Complex.”

• Few individuals have gotten close enough to the self-proclaimed Islamic State. Jurgen Todenhofer is one of them. He embedded with ISIS for 10 days in December of 2014.

• We conclude our series on the global economy with a focus on the United States. How has the American economy changed since 2008? Here to weigh in is Larry Summers, whoserved as the 71st secretary of the Treasury for President Clinton, and the director of the National Economic Council for President Obama.

• This week, the E.U. started to implement a joint to return migrants from Greece to Turkey. But there are major legal and logistical concerns. Peter Sutherland, United Nations special representative of the secretary general for International Migration and Development, explains.

• A survey of 3,000 women in the military found that over 60 percent of respondents had an eating disorder. Patricia Murphy, a military and veterans reporter for KUOW, explores the extent of the problem and what is being done to address it.

• In “At the Existentialist Cafe: Freedom, Being and Apricot Cocktails,” author Sarah Bakewell takes her readers on a romp through the existentialist movement in the early part of the 20th century.