fire chief mitch randles. >> we're searching every structure that's been damaged or destroyed in a morenner. the third search through once again will be very similar to that. then, the fourth search through will be with those search and rescue dogs. i've got dogs and dog handlers coming in from all over the country to help us with that effort. >> ifill: in one of the worst- hit areas, near two flattened big box stores-- a home depot and a walmart-- special equipment was brought in to break through massive concrete slabs. >> you see these solid concrete block walls, and you see this stuff just piled in on top. and so, people felt they had a sense of security in a store that was massive and big and strong, and yet those walls came crashing down. >> ifill: for some of the volunteers, the search was deeply personal. gary england's brother was inside the home depot when the funnel cloud roared through. >> we haven't found him yet, but we'll keep looking. we'll be out here until we find him. >> ifill: a search operation was also underway at a nearby apartment complex destroyed in the storm. t

in fact, randle pinkett won on, as you know, the apprentice a little while ago, a couple years ago and he's been outstanding in every way. i am the least racist person. but this is a guy trying to get some publicity for himself by attacking donald trump and that's okay because a lot of people do that. >> steve: that group has said it was connected to the fact that you wanted to see the president's birth certificate and we have it. now that's put to rest. but also a popular web site, groupon pulled some ads from "celebrity apprentice" web site after some lefty blog think progress complained about you. >> you know, it's one of the hottest shows on television for advertising and probably the easiest sale nbc has for getting advertisers. so if somebody wants to pull an ad ad, i guarantee you, they have 30 others that want to replace it. >> brian: with all the criticism coming your direction, does this make you want to run less or more? >> i don't think of it that way. i have said and every time i speak, i say, i have always been told that a very successful person cannot run for high office