Who is settling outstanding Lebanese political debts?

Reuters is reporting that a car bomb almost killed a senior Lebanese intelligence officer in Sidon:

BEIRUT (Reuters) - A roadside bomb blast killed an escort of a senior Lebanese intelligence officer, who was among five people wounded in the attack near Lebanon's southern city of Sidon on Tuesday, police said.Police had earlier reported two of the officer's companions had been killed by a bomb planted in their car.

The officer, Lieutenant-Colonel Samir Shehadeh, holds a senior post in the Interior Ministry's intelligence branch and has played a leading role in Lebanon's investigation into last year's killing of former Prime Minister Rafik al-Hariri.
Lebanon's acting Interior Minister Ahmad Fatfat said Shehadeh was in stable condition.

Police said the bomb exploded as two cars carrying Shehadeh and his companions passed through the coastal village of Rmeileh. Shehadeh was in the second car. A decoy, Sergeant Wissam Harb, was killed in the passenger seat of the first car. "It is obvious from the decoy operation that saved him that that there were expectations (of an attack)," Fatfat told Future television, which is owned by the Hariri family.

There was no claim of responsibility for the attack, which occurred ahead of a report this month by U.N. investigator Serge Brammertz on his inquiry in Hariri's killing. The Lebanese government plans in the next few weeks to authorize an international tribunal to try the culprits. An initial U.N. report said Syrian security officials and their allies in Lebanese security agencies were involved in the bomb blast that killed Hariri in Beirut on February 14, 2005. Damascus has denied any role in the assassination, which led to the withdrawal of Syrian troops from Lebanon in April 2005.

This potentially suggests that the Lebanese are now on the road to pay back. There are only two players that can be benefit from the destabilization of the Lebanese political situation; Hezbollah and Syria.