It’s an international game of chicken. At one end of the Strait of Hormuz Iran is threatened to attack any ship that crossed without its permission. At the other, a US blockade is halting the few remaining ships that were making it through — all of which were tied to Iran’s shadow fleet. The result is that traffic at the critical choke point — which carries 20% of the world’s oil — is at a standstill. Only four ships appear to have successfully crossed the Strait of Hormuz in the four days