Chairman Mao once said that political power comes from the barrel of a gun. He was only partly right: power that comes from the barrel of a gun can be effective only for a short time. In the end, peoples love for truth, justice, freedom, and democracy will triumph. No matter what governments do, the human spirit will always prevail.
In my mind of course natural disaster like tsunami, and these things, also I think indirectly may relate to human behavior. But then major sort of problems actually they're due to a lack of moral principle.
The real troublemakers are anger, jealousy, impatience, and hatred. With them, problems cannot be solved. Though we may have temporary success, ultimately our hatred or anger will create futher difficulties. Anger makes for swift solutions. Yet, when we face problems with compassion, sincerity, and good motivation, our solutions may take longer, but ultimately they are better.