Last Saturday in Missouri, U.S., 8-year-old Nolan Davis led a children's march. They expected 50 people to attend. About 700 showed up. Walking down neighborhood blocks, they chanted: "We are the children, the mighty, mighty children. Here to tell you, Black lives matter!" The children also covered sidewalks in chalk with phrases such as "Stop Racism" and "Be Kind to Everyone." They marched with posters in their hands that read among, other things, "Black Children's Futures Matter." Though only eight, Nolan has already had "the talk" about why he needs to act differently from his peers of other backgrounds, such as never wearing a hood and playing with water guns only in the backyard -- "because you don't want it to get mistaken for something else."