i mean, you can say that randall stephenson is responsible because randall stephenson's the ceo of att. but what impact saying that randall stephenson is responsible for that, would have on the eventual safety of future crews, i think that's too far tv the fatality... >> smith: in the course of our investigation, we obtained this private letter to osha from the subcontractors trade group. in it, they urged osha to go after carriers and turf vendors that hire unqualified contractors, warning that otherwise, "fatalities are going to continue." but three years later, we found out that osha doesn't even track which carriers are connected to fatal accidents. at this point in time you don't collect data on the carriers? >> we don't. >> smith: and is that something that you should be doing? >> it's something we could do. again, it's a lot of work to try to trace things up to the ultimate owner. but it's ... it would probably not be a bad idea for us to do that. >> smith: is it that much work? don't you just have to ask the subcontractor? >> well, the subcontractor may not know who the ultima