Well, any time you have a damaged structure it's a totally different animal. I mean it is much harder for us to bring down a structure that's already damaged, because you no longer know how the forces are working. In that building, there was literally one column left in that whole building. When my father got to the site, there was a man very gingerly trying to dig debris off the building to uncover bodies. And my father said, "Stop. If you move that pile one more foot the whole building is going to come down." And so we worked closely with the fire and rescue teams. The whole building was basically full of, you know, classified information. So we actually had a contract with them to remove any classified materials from the building that we could locate—thousands and thousands of pieces of paper. But, it was just very heart wrenching, you know, because they were still recovering bodies right up until days before we actually brought down the building. My uncle and my father worked quite a bit in Mexico City in '85 following the earthquake and they had helped pull bodies out there. So, it's not like it's ever old hat, but they'd been there before.