Sadly, we are once again witnesses to senseless violence. New images of suffering, panic, and heroism burn themselves into our memory. Shock mixes with grief, disbelief, compassion and anger. Monday's bombing at the finish line of the Boston Marathon occurred just blocks from the Unitarian Universalist Association headquarters. As far as we know, all our staff are safe. Our prayers go out to the families of those who were killed and to all who have been injured.