I think the point a lot of people are trying to make is that there is a tragedy occurring in Japan. Why it happened or the cause of it is not for us to delve in to. We are not Hashsem’s accountants or Navi that knows things. We should feel the tragedy of loss of life and hope everyone, Jews and Non Jews, will be alright. We can strengthen our own middos, learning or anything else. But we do not know the cause of why these tragedies occurred. To suggest otherwise is tipshus.
For example, a tipush could suggest that Japan received two nuclear bombs during WW2 because they housed Mirrer Yeshiva. Maybe hashem was upset with Japan for saving those Jews because they were litvish?? Didn’t you know hashem is a chosid and not litvish? Yes, it is an absurd statement, but when you start making up chashboynus, one can say anything! Leave the booba maises to yourself.
All we know is a tragedy occurred and we should davven for everyone’s heath (yes, there are Jews in Japan) and in the Zchus of them saving all the Jews during WW2, the nuclear reactors should come under control. Amen!