time for one or two more calls before we lose laura ungar from louisville. go ahead. ller: good morning. thanks for taking my call. i was wondering, laura, have you done any investigating down in corbin, kentucky? guest: i have not. we have a look at some places in kentucky. what should i look at? we -- we get to this report every year that says our water is safe. i have been here for about 18 years now. and every time i go to get a drink of water, it is ok if you drink it right away but if you leave it at room temperature, it tastes like tar. it is continually giving us the report was the year -- once a year that our water is safe. everybody i talk to and i live in a complex, everybody i talk to says the water tastes like tar. i was interested if you ever done any investigative studies down here in corbin. also, another question. why can't some of these larger communities, such as louisville and lexington, why can't they go out to the rural communities with their education and help some of these small communities? host: laura ungar? guest: the other caller mentioned e

laura ungar, who are these 4 million americans, where do they live, and why are they particularly impactedest: first of all, thanks for having me. a lot of these folks are people that live in remote communities, poor communities, rural communities, a lot of disadvantaged folks who already face a lot of difficulties, poverty, that sort of thing. this is one other problem on top of that for them. a lot of these people are very disadvantaged. host: when we talk about toxic water, we are talking mostly about lead in water. correct? guest: we focused on lead in water but we also focused on were nottems that testing properly, either skipped testing or were not testing properly. a lot of times you just don't know what is in the water because it is untested. we focused on lead in the series of stories. host: give us some of the numbers you came up with, how many water systems did you look into, what did you find? we looked at basically all the water systems in the united states but focused on the smaller systems which are more than 90% are small. we focused on those small .ystems we are talking ab