earthquakes. nbc's matt bradley joins me now, matt, when we tried to reach you earlier you could not speak, you had to be silent because of rescue efforts, explain what exactly happened. >> yeah, this happens intermittently, i have been here since monday and this has regularly occurred, we don't love it when it happens on air but we cannot control that, we are on their schedule and they are certainly not on hours. what happens is, these rescue workers, and, in this case we moved, this is more like a demolition job at this point, these rescue workers are still trying to keep everybody quiet in order to listen to what is going on underneath the rubble. they are expecting to hear voices. and, they are rightfully expecting that because, earlier on in the week after the initial earthquakes there were a lot of things buried on at the level. ordinary people, mothers, fathers, elderly people were using their bare hands, we saw them do this, lifting up