After World War II, Mattei was given the task of dismantling the Italian Petroleum Agency, a Fascist state enterprise. Instead, Mattei enlarged and reorganized it into the Ente Nazionale Idrocarburi (ENI), or National Fuel Trust. Under his direction, ENI developed large deposits of natural gas in Italy and negotiated important oil concessions in the Middle East. Mattei became a powerful figure in Italy before he died in a plane crash in 1962. What conspiracy theories exist about his death? Discuss