When we hear the word innovation, we often think of new technologies or silver bullet solutions — like hydrogen fuel cells or a cure for cancer. To be sure, breakthroughs are vital: antibiotics and vaccines, for example, transformed global health. But as we’ve argued in Fixes, some of the greatest advances come from taking old ideas or technologies and making them accessible to millions of people who are underserved. One area...

It is quite likely that a few weeks from now someone will be knocking at your doors and asking for your fingerprints. If you agree, your fingerprints will enter a national database, along with personal characteristics (age, sex, occupation, and so on) that have already been collected from you, unless you were missed in the “Census household listing” earlier this year. The purpose of this exercise is to build the National...