'If they get one, we have to': Saudi Arabia will seek nuclear weapon if Iran does

Crown prince Mohammed bin Salman, has said Saudi Arabia would be forced to obtain nuclear weapons if regional rival Iran does. In a Fox News interview, he said his country was concerned about any other developing nuclear weapons, adding: 'It's a useless effort ... because you cannot use it. If you use it, you gotta have a big fight with the rest of the world.'