>> welcome back. we have news just into us here on the hunt for missing malaysian air flight 370. the plane actually had four emergency locator transmitters and according to the sourt it is ord that the transmitters didn't go off or activate. so four des pratt families only add to their agony because i want to show you this. heartbroken families here on their knees praying, sobbing, pegging for answers at a prayer vigil today. they have endured 43 days offing a any. we will talk about the search here for evidence for wreckage,