Caste system is quite simple to understand; If you're not from my caste, you're non-human to me; I can abuse/exploit/rape/harm you; Caste is present where ever Brahmin is there; Expel Brahmin From Your Country;
http://www.nytimes.com/2013/06/16/opinion/sunday/caste-is-not-past.html
http://www.washingtonpost.com/blogs/worldviews/wp/2013/05/15/a-fascinati...
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