I think you're right that terrorists could want to take over Egypt, but I don't think they're anywhere strong enough to do that. And some of the countries similar but more extreme than Egypt (again, I'll have to mention Saudi Arabia and especially Iran in this case) support terrorists.
Edit: Demonstrations in Iran!
"
Demonstrations Have Reached Iran14. February 2011 15:47According to Reuters, there are clashes between police and protesters in several places in the Iranian capital, Tehran, where the police have taken tear gas and rubber bullets in use to dissolve the demonstrations.
At least 18 people has been provisionally arrested.
Opposition Leader in House ArrestAll day in Iran, there have been security forces present in the capital's streets ahead of what may be the biggest demonstration the country has seen since the Iranian opposition movement's first green demonstrations in December 2009.
In connection with today's demonstrations, the authorities have denied opposition leaders Mirhossein Mousavi and Mehdi Karroubi to attend and have placed them under house arrest, while all telephone contact and internet near their houses are abandoned.
It is so far reported that at least 4,000 demonstrators in the streets, and still more flowing mainly to the central Azadi Square.
The Legacy of Tunisia and EgyptMeanwhile, according to Reuters, larger demonstrations have begun in the southern city of Isfahan and the southwestern city of Shiraz.
The Iranian regime is seeking, according to BBC, to prevent Iran's green opposition movement and other opponents of the regime manages to use the uprising in Tunisia and Egypt to incite new violent protests, which finally occurred in 2009 over the reelection of the controversial Iranian President Mahmoud Ahmadinejad."
Translated with Google Translate, with a few quick changes. Source:
http://www.dr.dk/Nyheder/Udland/2011/02/14/154234.htm