Destruction threats, all-out war fears: What could the Hezbollah leader’s killing spark?
Hassan Nasrallah was killed in an Israeli air strike, and the Lebanese political and militant group's backers have warned it will not go unavenged.
Moderated by Tomas Kauer 
Hassan Nasrallah was killed in an Israeli air strike, and the Lebanese political and militant group's backers have warned it will not go unavenged.
