What happens when the world’s humanitarian safety net starts to disappear? On Ian Explains, Ian Bremmer breaks down the state of the collapsing global aid system—a problem that’s easy to ignore, until it isn’t. For decades, international aid has helped fight poverty, contain disease outbreaks, prevent famine, and keep fragile countries from collapsing. But after the United States shut down USAID and other wealthy countries began pulling back their own commitments, that system is under unprecedented strain.