There's something that I've always wondered about. Can Data be assimilated by the Borg? I remember him being called "obsolete" in Best of Both Worlds, but I also recall hearing more than a few times that the Borg needed their organic parts in order to survive. I ask this because for many years after watching First Contact, I could never quite figure out why Data wasn't assimilated so the queen Borg would be able to know that Data was playing along, but was still on the side of the Federation.