Irene doesn't get it for a split second as she rifles through her memories, trying to remember what she knows about Shada; there had been information on the pamphlet and in various other informational pamphlets (propaganda).

And then she remembers, properly, what Shada stands for and why she'd liked her so much.

"Oh," she says, highly amused- interesting, really, that's funny- "I bet. Careful, though. 'Interesting' could mean absolutely anything." A beat, and she finishes, deadpan: "Less virtuous people than I might assume the worst."