The last thing that I can afford is needing his help at home and having to say "oh, by the way, there's this thing called the Nexus". It would be a serious breach of trust and could get so many people killed when it could have been prevented.

I'm just trying to figure out how to phrase everything. I realize it's not a matter of if he'll believe me, but rather, explaining it the best that I can. I don't want to bring him to the Nexus if I don't have to. My instinct keeps telling me to limit exposure to the Nexus. The less people coming and going, the less outside interference there will be.