You may know exactly what race you are, but how would you prove it if somebody disagreed with you? Jenée Desmond Harris explains. And for more on how race is a social construct: http://www.vox.com/2014/10/10/6943461/race-social-construct-origins-census Subscribe to our channel! http://goo.gl/0bsAjO Vox.com is news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: http://goo.gl/IZONyE Follow Vox on Twitter: http://goo.gl/XFrZ5H Or on Facebook: http://goo.gl/U2g06o