Instead, it took the years of cover to develop nuclear weapons.

"For that matter, we know the other side developed nuclear weapons, remember?"

Iraq is not the only country to develop biological weapons.

"Here was a model of a poor state getting away with developing a nuclear weapon."

Since then, talk of developing a nuclear weapon has died down.

It would have been hard not to suspect him of trying to develop such weapons again.

Several countries developed nuclear weapons despite, or outside, the treaty.

In return, they would promise not to develop nuclear weapons.

Under what conditions does it serve a nation's interest to develop nuclear weapons?

But after the most recent general war, they continued to develop nuclear weapons at an unusual rate.