Eleven months into a violent uprising that has taken the lives of more than 5,400 Syrians, how has President Bashar al-Assad managed to hold onto power while his counterparts in Tunisia, Egypt and Libya were toppled?

Today five experts weigh in over at The New York Times, but the question, which has some experts confounded and others unfazed, is one we also explored in our November report The Regime, produced by Marcela Gaviria and embedded above.

The film traces the roots of the Syrian rebellion, from the lingering, deep-seated resentments that stem from repression under Hafez al-Assad’s regime, to the failed hopes for reform promised by his son, to the spread of the current uprising galvanized by the torture of 15 schoolboys in a small farming town last March.

“Those who believed in President Bashar al-Assad lost all that faith when the first bullet was fired at a civilian in the street in Syria,” Syrian opposition leader Ausama Monajed told FRONTLINE.

The film also conveys the complicated sectarian dynamics and regional politics that make the events in Syria so critical.

“I think it would be easy to make the argument that Syria’s rebellion is the most important of all the rebellions happening in the Arab world,” New York Times foreign correspondent Anthony Shadid told FRONTLINE. “Syria is so embedded in the relationships in the region, its longstanding alliance with Iran, its longstanding alliance with Hezbollah. The border it shares with Israel, the border it shares with Turkey and Iraq. And the idea that something could spiral out of control very quickly is not is not beyond the realm of possibility.”