Xenophobia can be defined as an established, unreasonable hatred towards or fear of foreigners, or of ideas or beliefs that are perceived as foreign, strange or outside of the norm. Xenophobia, while it is unjustifiable, does have causes that can be attributed to its addition. Poor experiences with others from certain groups, an obvious fear of that which is different, propaganda, or exposure to unspoken or exact xenophobic behavior by others can, unfortunately, all result in acquiring xenophobia.