The weekend bombing that killed at least 17 people was the worst of its kind since Syria's battle with the Muslim Brotherhood in the 1970s and 80s.
While the small community of adherents to strict Islam are being courted by Sunni and Shiite rivals, many worry they could bring Al Qaeda into the Lebanon conflict.
But the ruling Kadima Party, which votes on a new leader Wednesday, may not buy into the former army chief's security policy.
They are forging economic ties with the Muslim world at a time when interest in Islam is also growing.
Fights between Sunnis and Alawites highlight challenges facing a sectarian-reconciliation deal signed this week.