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

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.

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

The dream of democracy has long been enshrined in the hearts of the Egyptian people. It only needed awakening.

We have no functioning parliament in Egypt and months ago Mohammed Morsi assumed legislative functions. Now he's decided that there should be no opposition to the laws that he makes and that he is authorized to pass any national security measure. It is difficult to be more absolutist than that. And the constitutional convention - what a sad gathering; it threatens to send us back to the darkest period of the Middle Ages.

Nuclear proliferation is on the rise. Equipment, material and training were once largely inaccessible. Today, however, there is a sophisticated worldwide network that can deliver systems for producing material usable in weapons.

The Muslim Brotherhood is a religiously conservative group. They are a minority in Egypt. They are not a majority of the Egyptian people, but they have a lot of credibility because all the other liberal parties have been smothered for 30 years.