There is no grief like the loss of a child, whether from a natural cause, illness, accident or violence. A parent's world is turned upside down: This is not the way the universe is supposed to be.
So when families from Sandy Hook Elementary took it upon themselves to travel to Washington, D.C., to meet with members of Congress in an effort to get federal gun control legislation there were many eloquent and heartfelt moments.
One poignant moment was the address by Francine Wheeler, whose 6-year-old son was killed in the Newtown, Conn., tragedy. President Barack Obama let her give his weekly radio address.