[bumped]

The internet brings people closer to facts than they have ever been in history; yet no proximity will ever exceed what you already believe to be true. IBM knowingly participated, and apologized only a few years ago, but never returned any of the profits. The distinction made throughout the responses here is that IBM knew nothing so are as non-culpable as someone who invents a weapon or a utility that is later weaponized. This is untrue, as you read, but that disbelief is part of what allowed the holocaust to continue. I read a narrative once of someone who was watching World War I brew, describing it as a non-event that would not transpire because he could not imagine people with top hats engaging in the brutish behaviors of their predecessors.