<blockquote>The District’s black residents, who now account for half its population, once opposed marijuana legalization, partly out of fear it could lead to addiction among black youths. But as new studies have suggested otherwise, that attitude has evolved. One study last year showed that blacks account for nine out of 10 arrests for simple drug possession in the District, while another showed that was the case even as usage likely varied little among races.</blockquote>
via <a href="http://www.washingtonpost.com/local/dc-politics/poll-dc-voters-poised-to-legalize-pot-elevating-national-debate-over-marijuana/2014/09/18/08360f90-3dfe-11e4-b0ea-8141703bbf6f_story.html">Poll: D.C. voters poised to legalize pot, elevating national debate over marijuana - The Washington Post</a>.