 Complete the following phrase:  The Thin Blue Line flag is all black, bearing a single horizontal blue stripe across its center. Variations of the flag, often using various national flags rendered in black and white with a blue line through the center, are seen below. The Blue Lives Matter movement was created in December 2014, after the homicides of NYPD officers Rafael Ramos and Wenjian Liu in Brooklyn, New York in the wake of the homicides of Eric Garner and 