With their shared history (the '67 & '73 wars, especially), both sides could be forgiven for being suspicious.
I doubt it, but perhaps the Egyptian goverment (from most accounts, serving at the military's pleasure) is trying to quell domestic unrest by attacking the almost universally (in the Arab world, that is) despised Israel. Hey, the same ploy worked great for the Argentinian Junta in '82.
