Hate to put them together, but they do have one wonderful thing in common when defending the truth of history.
Both German Nazis and Catholic Inquisitors were excellent record keepers. Most genocide numbers are estimates, because most genocidal maniacs do not care to keep such excellent records.
I wonder if one day the files of Planned Parenthood will serve a similar historical value, to get an accurate count of the dead.
In some cases, the number is damning. In other cases, such as the Spanish Inquisition's rather progressive and liberal 98% acquittal rate, the numbers are liberating. But in both cases, accuracy leads to a view of history not normally available even a few decades later.