they will fine details, like how things were put together. was it deterioration? >> i just have one very important question for you before i let you go here. a researcher at the florida international university's institute of environmental -- excuse me, environment, told cnn, in a recent study he found, this condo showed signs of sinking in the '90s. i'm wondering if that can be a factor here. aren't there redundancies built into buildings for sinking? >> absolutely. it's not something we can't rule out. almost every building settles to some extent. it's just a matter of the soil picks up load and it starts to strain with that. you expect something. that in and of itself isn't unusual. the other factors to think about is, generally, just a uniform