the investigators here have been holding all their information, it is, perhaps, slightly out of the ordinary and also slightly out of the ordinary they have not played the recordings to the families of the first officer and the captain, don. >> nic, tell us about these groups that the malaysian government is forming as part of the investigation. >> yeah, three groups. airworthiness, operations and medical. airworthiness is looking at the maintenance records, those sorts of things, the background of the aircraft leading up to this day. the operations will be focused on the flight recordings should those black boxes be recovered. their role will increase once some of the debris is in the hands of investigations, if that happens. and then there is the medical side which will -- if eventually the aircraft is found, will also