Mass media may be used to influence or manipulate public opinion in favour of a political ideal or government policies. Such governmental 'information', official or unofficial, may be false or misleading. It may intensify conflict and intolerance, and lead to war or to terrorist activities. It may strengthen government control, dictatorship and repression, inequality, injustice and exploitation. It may create confusion or induce apathy, conformism, fear, cultural stagnation and alienation through ignorance. Non-governmental propaganda may emanate from opposition political parties, ideological groups, or from business interests.