When Syria was pulled apart seven years ago, the United States opted to stay on the sidelines. It was clear that President Bashar Al-Assad was a bad guy, but it was far less clear who the good guys were.

Unfortunately, inaction has also had its price for the U.S., according to our guest Steven A. Cook, who is the Eni Enrico Mattei Senior Fellow for Middle East and Africa Studies at the Council on Foreign Relations.

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