"By the second or third day that you're homeless, in the car with all your clothes, your pots and pans, everything, having to wash yourself in a public rest room, you logically start to feel dirty. You prefer to use the drive-through [at fast-food restaurants] where no one will see you. You begin to hide your family."--Invisible Nation More than 2.5 million children are homeless in the United States every year. In every state, children...