Citadel founder Ken Griffin delivered a stark message to global leaders at the World Economic Forum on Wednesday, identifying unchecked sovereign debt—not private market speculation—as the single greatest threat to financial stability in 2026.A Crisis Of Public ExpenditureSpeaking on a CNBC panel alongside BlackRock Inc. (NYSE:BLK) CEO Larry Fink and ECB President Christine Lagarde, Griffin rejected historical comparisons to the private sector excess that triggered the Great Depression.Instead, he pointed t ...