An Egypt in a state of Civil war is not strong enough to defy Israel, not to mention an Egypt that is NOT in a civil war is not even strong enough to defy Israel. The true reality if Egypt falls to corruption and the border of Gaza/Egypt weakens, will look more like Israel bombing the crap out of the border between them, and Egypt STILL not doing anything about it. Egypt can't even confront the Egyptian population and you think they can confront Israel? You make me laugh very hard sir...
Attempted stabbing of Israeli soldier in Hebron; Palestinian female attacker shot dead (Haaretz)
from the article: Mubarak refuses to step down, dismisses Egyptian government