Video at http://www.kirotv.com/videos/news/raw-video-activists-disrupt-rally-featuring-sen/vDYQxq/ SEATTLE — A Social Security and Medicare rally at Westlake Park that featured Democratic presidential candidate Bernie Sanders was interrupted by activists with Black Lives Matter on Saturday afternoon. As Sanders went up to the podium, activists took the stage to protest. Sanders stood aside as the activists spoke. Sanders was scheduled to speak at the event, but due to the disruption the event ended. [snip]