The message to Iran is: "Relax, we're not going to have any conflict as long as that submarine remains in the Persian Gulf." A valuable asset like a nuclear su

The message to Iran is: "Relax, we're not going to have any conflict as long as that submarine remains in the Persian Gulf." A valuable asset like a nuclear sub would not be risked if there was any likelihood for conflict. A nuclear sub trapped in the shallow, restricted Persian Gulf would be like 'shooting a fish in a barrel'.