Huh. [He's quiet for a moment as he takes this in, along with Ianto's response. Clearly, this is something Ianto's known about for a while, and while it certainly sounds like the sort of thing the Defence Force ought to know about, that's kind of moot now anyway, so he won't make a fuss about not being told.
He will attempt to make sure he's got his facts straight, though.]
This is from that glitch that brought in future you while I got regressed back to the Time Academy, right? One of those things you kind of remember, like dying to save the world?