chinese families? the chinese families, though, seem to be trying to take matters into their own hands. they submitted a list of questions on monday with highly detailed questions. they want to know, who manufactured the black box aboard mh-370? they want to know the serial number of the black box. they want to know how many emergency transmitters were on that plane and where those transmitters were located. and that really highlights the suspicion that has built among these worried family members, the distrust that has built as well at what they claim is a lack of information and transparency in the investigation by malaysian authorities. christine? >> almost as if they want to do their own investigation. they're so fed up with the lack of information from authorities. ivan watson in beijing. thanks, ivan. happening right now, a big day in the oscar pistorius murder trial. a battle now over how quickly the olympic hero shot and killed