Second Flight Communications System News Today

Malaysia flight 370 vanishes into thin air. theres been silence from the cockpit. and by 1:37 a.m., a second flight communications system, acars, isnt working either. >> acars was either switched off, or it failed. we dont know which because whatever did happen, this is the crucial moment. we pretty much know that all the comms are disabled, switched off, broken, blown up. >> as an investigator looking at this, what would the determination be, at least at this point, as to what is happening? >> ...