Now that of course is utter nonsense. In a country so dependent on tourism and foreign visitors no government in its sane mind would air an ad that portrays foreigners as dangerous spies. Egyptians clearly succumbed once more to conspiracy theories that abound on the internet.
Unfortunately the ad that was aired in Arabic got worldwide attention with reporting in major newspapers like the New York Times or the Independent. Those papers of course could not understand what was said in the TV-ad and therefore reported wholly wrong.
A version with the correct English translation to the ad (note that there is a sub-titled version on the internet that cannot possibly be taken seriously) has now been published and can be watched here. It shows clearly - as was expected - that Egyptian State-TV as always showed responsibility, was true to the revolution and voiced the grave concerns of the revolutionaries against the military rule of the Supreme Council of Armed Forces. All rumours saying otherwise are clearly lies.