The problem that tipped the scales in Egypt are a poor economy, unemployment and poverty.
Simple as that.
NOw what groups may be trying to take advantage of that is another matter.
Wrong. If that was the case, the people of Detroit would've overthrown the Democratic dynasty that has run that city for decades, but they haven't. Or Mexicans would've overthrown the Mexican government. Or same in Cuba. Or Venezuela. Or Russia. Or China.
Truth is......radical Muslims know this is the time for revolution. They have a United States being led by a weak president who will not strike down an uprising of radical Muslims. They know this is the time. Iran's leader thinks so too, praising the time for the return of the 12th imam. They see this as the time in history when they can surround Israel and destroy it, bring back the 12th imam, and spread Islam throughout the world by the sword, cutting the throats of any who resist (which their holy book literally says to do). Thats why they are rising up in Egypt, and Tunisian, and Algeria, and Jordan, and Turkey. They're fu**ing crazy, suicidal, fanatical, and we ARE DOING NOTHING TO COUNTER THEM.