worse. so time is of the essence, and then obviously, the possibility of further collapse or shifting of the rubble. there is a possibility that as they try and get down to them that further debris may fall or that the supports that the rubble is resting on might become compromised and could result in further collapse. >> and chief witt, your montgomery county teams are participated in so many of these. we saw large pieces of lumber being brought in on a pickup about 20 minutes ago. presumably that would be if a crane can lift some of this to create some space and to prop up and create more space to get those children out with the lumber? >> yeah, a lot of times what you want to do is make sure the building doesn't move any further so you bring the lumber in, cut it to size to fit the spaces as you move other debris or other supporting material to ensure that as you're tunnelling