that goes off. and it registers and transmits the data of impact. so far u.s. officials say they don't see any data that that emergency beacon system went off. certainly nothing that the malaysians have shared with them yet. so that adds to the mystery. the plane if that did not go off was certainly for some period of time in some form of relatively stable flight, officials say. but did it land somewhere? we've asked everybody. and i have to tell you, you get the same answer, piers. head scratching. in today's modern world, in today's age, is it actually plausible that a passenger airliner with so many people on board landed somewhere and nobody noticed? >> but at the same time, barbara, clearly everything about this story is highly mysterious. >> reporter: absolutely. >> if not suspicious. i think most viewers will be sharing my utter disbelief that it's taken nearly a week to