How big a threat is ISIL to the Syrian government?

ISIL fighters killed over 240 people on Wednesday, raising the question how much ISIL threatens the Syrian government.

Islamic State of Iraq and the Levant (ISIL, also known as ISIS) fighters have carried out their deadliest attacks for months in southern Syria.

Suicide bombers targeted a vegetable market, a hospital and a public square in the government-held city of al-Sweida on Wednesday.

Other fighters raided nearby towns and villages.

Dozens were killed, including pro-government fighters. Some activists and doctors say the number of fatalities is at least 240.