it's easy to understand why the israelis don't like this, but it doesn't have much to do with it - it's a deterrent against american intervention. and it's working. this is the reason the americans are funding mercenaries instead of launching air strikes.
there will be air strikes, but only on the condition that the rebels can disarm the air defenses. that's what their strategic objective is...
http://www.youtube.com/watch?v=3H4mNooW2no