Hezbollah head says Lebanon could be 'exposed' to more Israeli attacks

Hezbollah chief warns Lebanon of Israeli operations if the group does not respond to the killing of Hamas deputy chief. Saleh al-Arouri's drone strike death could be a message to Hezbollah about vulnerability. Nasrallah says Lebanon will be exposed if there is no response. Hezbollah launched rockets in support of Hamas and carried out 670 operations on the border. Nasrallah warns Israel against expanding war and says there will be regret if war is launched on Lebanon.