BALTIMORE, Md. - Authorities allowed anti-abortion students to paint the phrase "Black Preborn Lives Matter" outside of a Planned Parenthood facility in downtown Baltimore on Saturday, with coloring that is designed to wash off in the rain.Members of Students for Life of America (SFLA) joined forces with the Frederick Douglass Foundation and Human Coalition Action, to plan the event and paint the statement.READ MORE: Here's what DC's massive Black Lives Matter street art looks like ...