(Photo by Jack Reynolds)

The U.S. Constitution requires a census be conducted every 10 years, and one has been taken every decade since 1790. Recessions, even the Great Depression, haven’t brought the census to a halt. Neither have wars or rumors of war or natural disasters. Now, though, the U.S. Census Bureau, like the rest of the country, is facing a unique challenge.

“Beginning today,” read a statement released March 18 by U.S. Census Bureau Director Steven Dillingham, “in support of guidance on what we can all do to…