I believe, there are three main reasons for this terrible tragedy: Haiti is one of the poorest countries in the world. Haiti is a very undemocratic country. And, well… there was an earthquake of major proportions.

Why do I believe that? Because it is common sense – and because of this impressive scientific study, which shows that there are far fewer deaths from natural disasters in rich and democratic societies:

Democracy, GDP and Natural Disasters
Gregory E. van der Vink and co-authors