Many of the world's 40,000 International NGOs (INGOs) work in places where terrorist financing, sanctions breaches, and diversion are key risks. Almost all of the top ten recipient countries of humanitarian aid alone in 2015 were high-risk jurisdictions, for example, receiving more than 7bn between them. When they feel safe to speak, sector workers share sobering stories about what might have happened to some of this money. As INGOs struggle...