You will not really have durable peace without a proper security structure in the Middle East.

We still live in a world where if you have nuclear weapons, you are buying power; you are buying insurance against attack.

Barack Obama has injected fresh momentum into efforts - stalled for a decade - to bring about nuclear disarmament.

Almost all of the liberal and Christian members of the constitutional commission have withdrawn, because we all fear that the Muslim Brotherhood will pass a document with Islamist undertones that marginalizes the rights of women and religious minorities. Who sits in this group? One person, who wants to ban music, because it's allegedly against Sharia law; another, who denies the Holocaust; another, who openly condemns democracy.

As long as some of us choose to rely on nuclear weapons, we continue to risk that these same weapons will become increasingly attractive to others.

Egypt is indeed deeply divided. Without reconciliation we have no future. The Muslim Brotherhood is an important part of our society. I very much hope that it will participate in the next round of talks. I will be the first to protest if the imperative of fairness isn't adhered to.

The globalization that has swept away the barriers to the movement of goods, ideas and people has also swept with it barriers that confined and localized security threats.