The successor to the slain Hezbollah leader Hassan Nasrallah could be Hashem Safi al-Din. He is the second-in-command of the group, according toThe Guardian. Safi al-Din may replace Hassan Nasrallah as the leader of the Lebanese militant group. According to sources, Safi Al Din survived Friday’s Israeli attacks on Beirut, during which Nasrallah was killed. What is known about Safi Al Din: As head of the executive council, Safi Al Din oversees Hezbollah’s political affairs;Safi Al Din is part of the Jihad Council, which oversees the group’s military operations;Safi Al Din is a cousin of Nasrall…