I think countries should have the right to possess nuclear weapons if they choose. The idea of other countries regulating this is tantamount to world domination. Each country should be able to protect themselves from other countries that may have intentions of hurting them or invading them. People just need to start seeing other points of view and have more tolerance toward other belief systems.
No, countries do not have a right to possess nuclear weapons. Nuclear weapons are among the most terrible weapons on the planet and the damage they do is unimaginable. To think that two such weapons have already been dropped upon the Earth is unthinkable and no more of these weapons ever should be.