By John Abowd, Associate Director for Research and Methodology at the US Census Bureau.
The blog referenced below was just released on www.census.gov. It explains how our new disclosure avoidance methods protect confidentiality and fitness-for-use. More importantly, it calls attention to the Federal Register Notice posted here (https://www.federalregister.gov/documents/2018/07/19/2018-15458/soliciting-feedback-from-users-on-2020-census-data-products) soliciting user feedback on the 2010 Census data products.
It is imperative that sophisticated data users respond to this FRN. As my new blog makes clear, we can control the fitness-for-use of the 2020 Census data products, but the Census Bureau cannot give every use case the same margin-of-error (just as we currently cannot give every statistic from the ACS the same MOE). The use case for the PL94-171 redistricting data is written into that statute. It is the only use case currently reflected in the design of the 2020 Census disclosure avoidance system. Other data users must supply information that demonstrates how the categorical and geographic detail in historical summary and detailed data tables, national and state demographic profiles, and topical briefs translates into their own use cases.