Fawad Azadi: The leader of no nuclear country has been assassinated.
Expert on American issues: I don't know of a country that has an atomic bomb and has changed its leader, or that country has killed 5,000 people.
The countries that have nuclear bombs create a permanent deterrent for themselves. This deterrence does not mean that such a country will not be attacked; An attack could occur, but the cost is much higher than when a country does not have nuclear weapons.