A little girl carries a big message - and finds it thrillingly amplified by the rallying crowd around her - in an empowering story for the youngest of activists. Mari raised her sign for everyone to see. Even though she was small, and the crowd was very big, and she didn't think anyone would hear, she yelled out. Mari is getting ready to make a sign with crayon as the streets below her fill up with people. What are we making, Mama?" she asks. A message...