Attendees of the Convening's opening ceremony raise their fists as a symbol of power during an organizer's speech.Activists from across the nation converged in Cleveland this weekend for a conference meant to draw national attention to police brutality and race relations in the wake of a number of incidents involving police and black Americans. The National Convening of the Movement for Black Lives began Friday at Cleveland State University where activists will attend sessions that range from viewing films to open discussions on topics that highlight issues that affect all aspects of black culture. The conference is happening amid an...