Anyway, so the GECK was created by Dr. Braun, but he doesn't have one, because... no reason. Instead the GECKs were sent out to various Vaults around the country, even though they were very dangerous and probably should have been entrusted to the military or US government and not just random people. The only GECK on the East Coast, apparently, exists in Vault 87, which is an evil cloning lab... thingy for Super Mutants. Who is creating them there? Nobody. Why are they being created? No reason. But more importantly, why would you put the GECK, aka the goddamn GENESIS DEVICE out of Star Trek III, into a Vault that was centered around doing cloning and sick twisted experiments, and which is so heavily irradiated that anyone but mutants are instantly killed when trying to enter? You're telling me that the GECK is a miracle device designed to save everyone, and someone said "hmm, we've only got a few... put it in Vault 101, the control vault where nothing will go wrong? nah, let's put it in the one with insane hostile deadly mutants and radiation everywhere, that's much safer."