[eynsham]

I don’t see how the move out of Cairo really indicates a loss of control anywhere else. It’s not like all the army bases in the Sinai or Alexandria or anywhere else are going anywhere. And there are good reasons to leave Cairo otherwise—for example, the severe mismanagement of the Cairene urban environment, traffic, &c. As for the second point, there have always been Islamists more radical than the Muslim Brotherhood, and Daësh if anything has less power now than it did at its peak.