Bersin is a village in Kyustendil Municipality, Kyustendil Province, south-western Bulgaria.Guide Bulgaria, Accessed Dec 27, 2014
See also Alan Bersin (born 1946), American lawyer, President Obama's "Border Czar", US Attorney for the Southern District of California, California Secretary of Education, Commissioner of US Customs and Border Protection, US Department of Homeland Security Secretary for International Affairs, and INTERPOL vice president"Alan Bersin, Acting Assistant Secretary, Office of Policy," Department of Homeland Security.
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