Sulu didn't really get it, and it was probably obvious from his expression, but he didn't really make an effort to figure it out. There were bits of friendly rivalry between countries (and states) even now, but he wasn't sure if Ianto's sort of rivalry was as passive as the ones he was familiar with.

"Good point," he said at the mention of knowing more about the history of London than Cardiff, "I guess I can see that. Still, man, it's all just a matter of being in the right place at the right time. San Francisco had it - maybe Cardiff will, too." He laughed, "Or Newport. Who knows!"