Mohammad Shakaki
AMMAN—Syria's former Prime Minister Riyad Hijab, who announced his defection from the Assad government Monday, is one of several high-ranking Syrian government officials to defect in recent months. But if it's increasingly clear that Assad officials are eager to separate themselves from the regime, it's not yet clear what role they will be able to play in the Syrian opposition. For regime defectors, joining the FSA at all is an involved process.