It's probably because they figure some tourists will avoid post-quake Japan and they don't want to lose those dollars.

I think it is because of the OBL thing

Huh?

What's the Ohio Bankers League got to do with it?

DL had been counting on landing their 2011 CEO Symposium and when they lost that, they had to scramble to cover the loss.

Ah. That makes sense. One group of banking CEO's would spend about the same amount as all of Australia.