bodies. they have dogs there which are especially trained, and they've been working those dogs over the site, four of them, but it is grim work and they have not been finding what they hoped. >> when you talk to these teams, they're veterans of tornadoes in the state, they're veterans of national disasters. they go back and forth, and when they see this, it's hard to describe the power of this storm. this was a school. >> thankfully, they've got heavier moving equipment. they have a number of jackhammers. they were able to drill through these walls itself. these front walls are incredibly thick. two slabs of concrete with insulation in between and a lot of rebar in that concrete, very well made. it's hard to find out if anyone is underneath and then moving those walls away. again, it's just been brutal