struck the pipe later drag it along the sea floor causing a rupture sending oil into the ocean and on to california s beaches. it has deflected 105 feet over the course of a year. experts identified a 13-inch crack they believe may have allowed oil to slowly trickle out under low pressure without triggering a shutdown. the beaches have been spared a potential catastrophe but the impact on an malls isn t known. the total amount spilled is a bit of a question mark. the coast guard says it s
those are some of our top stories on this tuesday, february 24th. announcer: from abc news, this is world news now. good morning to you. we begin with new details on the terror threat against u.s. shopping malls. the state department calling the videotape threat propaganda. even though authorities say there is no imminent threat, one of the nation s largest malls isn t taking any chances. here s abc s pierre thomas. reporter: at the mall of america, a full-scale lockdown exercise, preparing shoppers and retailers for how to respond to an attack. what if such an attack were to occur. reporter: it comes a day after fbi and homeland security officials issued a bulletin from al shabaab, a commercial for killing. a call for an attack on the mall of america, the nation s biggest shopping center just outside of minneapolis. an area with large somali