Maybe it’s folks finally putting two and two together.
OK, here is what I think it is. The census takers inputs to his hand held device can be correlated to existing databases generated by satellite imagery of every structure in the country. This will improve the accuracy of the census by verifying that more residences have been visited and that the census taker is not overlooking places or making up results.
The census is Constitutionally mandated for the essential purpose of apportionment. I therefore support and cooperate with it for that purpose only. I will not voluntarily supply any of my governments with any other sociological data. They get the numbers of people living in my household from me and that is all. I don't care if they take a GPS reading. Good for them if they are trying to be more accurate.