Today terrorism has made the world more uncertain and dangerous. Nowadays the target of terrorist acts is innocent people, and terrorism poses a threat to human rights, which include the fundamental right to life. All the scientific calculations, plans of global changes in the present-day world economy and policy may strongly change, if terrorism is effective. The problem of terrorism is universal, because anyone can be its victim even without having any connection with the enemies of the terrorists. Terrorism is a brutal solution to the problem of incompatibility among people, which works by destabilizing the psychological condition of the opponent through violence, not limited by civilized morals and law. Diagnostics of terrorism, its “treatment” and prediction, consists not so much in revealing and destroying its militarized structures, but in having exact knowledge and understanding of the reasons for its existence: psychological and political instability in societies. To understand the tendencies for present and future behavior of persons, we must begin with public attitudes toward different issues of politics, economics, social life, culture etc. Maybe it does not explain everything, but the social culture is a critical element in understanding people's actions across countries or across time. If we do not take it into account, we will not be able to understand their actions.