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blog/posts/differential-privacy.md
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@ -201,4 +201,9 @@ As a massive collection of data from a large number of U.S. citizens, it's impor
### Impetus
Since the 1990's, the U.S. Census used a less formal injection of statistical noise into their data
Since the 1990's, the U.S. Census used a less formal injection of statistical noise into their data, which they did all the way through 2010.
After the 2010 census, the bureau tried to reidentify individuals in the census data.
>The experiment resulted in reconstruction of a dataset of more than 300 million individuals. The Census Bureau then used that dataset to match the reconstructed records to four commercially available data sources, to attempt to identify the age, sex, race, and Hispanic origin of people in more than six million blocks in the 2010 Census.