[He mentioned him once, briefly, little more than a name on the very short list of people he trusts here. It's not that Ianto thinks Spike would go after any of those people per say, more that they'd be more likely to seek him out and the last thing they need is someone getting hurt.]
I don't know. He has his chip so he can't hurt anyone here. And hopefully he'll have his soul back when we return. It's just waiting until then that I'm worried about.