i think you set up terriann lowenthal quite well. >> yes, thank you, john, and john. thanks for having me, and i'd like to see what my tuition dollars paid for because not of this was your when i graduated from georgetown law many moons ago. but i think a more to talk about just two things. getting into a little more depth based on what john said. john talked about why and i could census is important. the question is does the census bureau actually get it right? it tries. the senses has generally gotten more accurate over time as i think john mention, but it is not an equal opportunity enumeration. the census does not count all population groups equally well. people of color are missed at disproportionately high rates. low income households in both urban and rural areas are missed at higher rates. while non-hispanic whites and higher income households were over counted in the 2010 census. also at risk of being missed, immigrants, female single-parent households, female headed single parent households, young mobile adults. icf you in here, are all at risk of not being