♪ oh love ♪ some say this is my greatest challenge ever. ♪ making it out ♪ but i've seen centuries of this. with a companion that powers a digital world, traded with a touch. the gold standard, so to speak ;) so, in this type of collapse, even though it is a pancake collapse. as the slabs of concrete slide and -- and move towards the ground, they do create voids. you know, as the rubble crushes and slabs of cop crencrete land top of it there are definitely voids. so we are hopeful we will find patients in those -- in those spaces. >> incredible, lifesaving sort of rescue missions going on right now. 28 1/2 hours roughly after this building collapsed.