The news of this tragedy has spread far and wide, with friends from both the mainland as well as Asia seeing the news and commenting to me about what they are hearing from their end. Getting to the bottom of this must be priority for the investigators. I would hope that is all we focus on right now because people have been killed, injured and displaced by this, and they deserve to know what exactly happened. 

Then we can debate on how to prevent this from happening in the future.