A disaster waiting to happen...

No doubt there is a perfectly innocent explanation for Egyptian passenger planes entering Israeli airspace unannounced, but it will only take one too extravagant an error for Israel to be forced to shoot down a plane rather than risk it decend upon Eilat. Moreover, given the likelihood that flight 990 was deliberately crashed by its pilot, there is at least valid cause for concern that the incursions into Israeli airspace are not entirely accidental either.
Jerusalem Post - Egypt violating airspace