Maybe it was something that would have skewed the survey, or actually, if we had, we'd gotten them, it would have gotten maybe get better data. But in this case, they tell us. The senator's office called those numbers until they got a response from all 100 people chosen. So the 100 people that they chose, they made sure they got a response. So non-response is not going to be an issue here. All right, next choice, undercoverage. Well, undercoverage is where you're not able to sample from part of the population.