Donald Trump Threatens North Korea With "Fire And Fury"

Emil Dall, research fellow in nuclear policy at the Royal United Services Institute, thinks we should be cautious. "It's important to underline we're not on the brink of nuclear war just yet, but we should also assume that both leaders stand ready to use their nuclear weapons. The North Koreans know that any attack by the US would be very devastating to them, so it's important to emphasise that both sides are trying to avoid conflict."