If you could un-invent something, what would it be?

Presently, many powerful countries made nuclear bombs or weapons that are very dangerous for the existence of human beings across the world. If any country will use nuclear bombs against any country in the future then millions of innocent people including babies, children and women were died at that moment. It is very horrible moment for those individuals whose family members died in any nuclear war. Millions of people will be injured if any nuclear war between two countries. It also adversely effects on the environment and health of individuals for decades.

Nuclear Weapons is very dangerous for humanity across the world. Many developing countries will try to develop nuclear weapons for their safety from powerful countries who have already nuclear weapons. Most countries spend crores of rupees to make nuclear weapons instead of education, reduce price rise, medical, and many other basic development of their country.

If all countries spend millions of money on medical facilities, education, made highways, create employment for people then it may be beneficial for mankind or humanity across the world. If all countries will destroy their nuclear weapons then it may be beneficial for common people worldwide.

Thus, I could un-invent or destroy nuclear weapons to safe lives of millions of people and environment across the world.