We're lucky to have siblings At first, Mira was so excited when her new her baby brother came home with her parents, but her excitement quickly turned to frustration. "Mom and Dad are constantly tired," Mira tells her friends at school. "And whenever they aren't tired, they have something to do: change diapers, feed the baby, put him to bed, dress him, undress him, rock him, cuddle with him, and worry when he cries for a long...