CNNW Anderson Cooper 360 January 14, 2012
threatening to close the strait as global pressure grows over its nuclear program. 17 million barrels of oil flow through the strait every day. it's a choke point. as american officials have been warning privately and publicly, it is also a serious flash point. >> what about if they decide to block us off at the straits of hormuz? >> we made very clear that the united states will not tolerate blocking of the straits of hormuz. that's another red line for us and that we will respond to that. >> we will respond, he says. the question tonight is what will iran do next. what happens then...