Jim grimaces. He really doesn't want to get into this, but-- sometimes, you have to give to get.

"There's this man from my world. Khan. He's a genetically engineered supersoldier. That's his." He nods to the slides. "The blood, not the tribble. I got killed back home, and my doctor... used his blood to bring me back." He doesn't look pleased about that. Maybe it's Kyle rubbing off on him a bit. Dead things should stay dead. But he waves a hand, dismissive. "If Khan ever shows up here, odds are he's going to try and use his blood as a bargaining tool. Say if someone gets sick, or injured, or doesn't trust the people here that use magic--" Like Korra, and he taps his foot against the floor. "Let's just say I'd rather he not have a monopoly on it. He's kind of a psychopath. I don't care if you want to keep it locked up in a lab, but I do not want him to be able to hold this over people's heads."

If. It's a big gamble, but it's one that he can't help but take. If Khan shows up. If he's from the right time. If, if, if, and Jim hates operating blind. Oh, he's good at it. All the dumb luck in the universe, right? But it's not the game it used to be, not any more.