lauren donovan joins us for more on this. good to have you. excellent work, as always.? >> well, that's a tough question to answer, ed. a part of the problem with the radioactive filter socks in north dakota is that there are not a lot of good data yet about how radioactive they are. at the present time, north dakota state health department has hired a national laboratory that will be doing a lot of testing on various material. from the oil field. including filter socks. and at the time when that study is concluded, we'll know a lot more about the radio active. we do know they tend to be higher than background and tend to be in some cases, pretty high or hot as it were. >> so, these socks are not supposed to be handled the way they're being handled now. there is a real danger to it. >> yeah. nobody should be around these. people should not be injessing or inhaling. if they touch them, they shouldn't obviously put their hands in their mouth. so, yeah, there is a need for care. the state health department estimates that about 27 tons of these socks are generated every day