nothing happens without orders from syria/iran order. nor does anything happen without the knowledge of hezbollah and its multitude of watchers and spies. it would be a grave mistake to let iran/syria/hezbollah start blaming a "small faction" for cross border rocket fires. israel needs to send a very strong message through diplomatic channels that rocket fires must not be repeated.
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)
from the article: UNIFIL vows to ensure calm after four rockets strike Israel from Lebanon