keilar. hundreds more u.s. troops are moving into the striking range today. the transport ship carried 550 in a rotor aircraft into the persian gulf. the pentagon says those ship, troops and planes will give the president options to protect american citizens and interest should he choose to use them. john kerry was asked today whether air strikes are one of those options. >> they may be one of options that are important to be able to stop the movement of people moving around in open convoys or trucks and terrorizing people. when you have people murdered and assassinated in these mass massacres, you have to stop