(FILES) US Federal Reserve Board Chairman Alan Greenspan talks at the Advancing Enterprise Conference & G7 Finance Ministers and Central Bank Governers' Meeting in central London December 2 2005. A "pernicious drift" toward unstable budgets and trade protectionism risks a painful unwinding of world financial imbalances and must be checked, Greenspan warned on Friday. Greenspan, the longtime US Federal Reserve chief who presided over an unprecedented American economic expansion but was later faulted for failing to rein in financial markets before the 2008 global crisis, died on June 22, 2026, US media reported. (Photo by TOBY MELVILLE / POOL / AFP via Getty Images)