Why conspiracy theories die hard

Recent polls have found that as much as 15% to 20% of the public, including about 30% to 45% of Republicans, falsely believe that President Barack Obama was not born in this country. Will Wednesday's release of Obama's long-form birth certificate put an end to the birther myth?

Source: http://rss.cnn.com/~r/rss/cnn_allpolitics/~3/I4WMxerzl7g/index.html

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