What happened in Tokyo in Praetoria?

I was doing Praetorian Penelope Yin's missions today, and in one of them, she sent me to Speak with Aaron Walker. When I was talking to him, I let him ramble on, and he made a comment about "what's going on with rebuilding stuff in Tokyo". At first I thought that maybe this was a reference to the recent disaster in Japan, though it seemed an odd place to put it. However, digging through the History page on the wiki, he's had that same text at least since the mission was first entered, on September 5th - long before anything happened in the real world.

Searching the wiki for "Tokyo" turns up four results: The one I linked above, two references to the original Rikti invasion, and an article about Icon in an old issue of the Paragon Times.

So, what happened in Tokyo, and why are they rebuilding? Or is it just the same generic Hamidon-destruction supposedly found everywhere?

Based on what I know, it's the generic Hamidon destruction... but it's one of the cities that Praetoria is trying to help rebuild and recover. It's a bit confusing whether they're independent of Praetoria or not... I think, at least publicly, they appear as if they aren't ruled by Cole.

We've been saving Paragon City for eight and a half years. It's time to do it one more time.

In Calvin Scott's arc, first mission, he says, "I sent a team to hit a storehouse jam packed with foodstuffs bound for New Vegas." So we know that there is at least one other city that is under the Praetoria Umbella of Doom.

Sent stuff to New Vegas?

I wonder if he used a Courier...

One of Anti-Matter's missions has Interrogator Kang wondering of Longbow "I wonder, are these some sort of foreigners? Perhaps from the East?" If we consider Kang a reliable source - and I don't see why not - then there are human civilisations outside of Cole's rule, who are considered both foreign and potential enemies.