What Just Happened? is a podcast about recent history. Today we discuss Black Lives Matter. #blacklivesmatter is more than a hashtag. It's a nuts and bolts organization run by three female activists, Alicia Garza, Patrisse Cullors, and Opal Tometi. The group went viral following Michael Brown's death in Ferguson, Missouri. They've disrupted campaign events of candidates like Bernie Sanders, Martin O'Malley, and Hillary Clinton. How they got started and what they stand for may surprise you.