When a government fails on disaster response, Stanford University historian Niall Ferguson says we often point the finger at the wrong person: the president — even if he's Donald Trump — instead of the mid-level bureaucrats who're actually responsible for most decisions. "When people are inclined to blame the person at the top, on closer inspection the point of failure is not there," Ferguson tells Ian Bremmer in the upcoming episode of GZERO World. Check local listings to watch on US public television.