2012 May Day protests in Chicago

<div class="meta image-caption"><div class="origin-logo origin-image none"><span>none</span></div><span class="caption-text">Demonstrators marched through Chicago on Tuesday, May 1, 2012, in recognition of May Day. More photos of May Day demonstrations around the world.</span></div>
May 2, 2012 9:33:39 AM PDT