http://www.mentalhealth.org/publications/allpubs/Ca-0022/default.asp
SAMHSA's National Mental Health Information Center, Center for Mental Health Services
Whether tragic events touch your family personally or are brought into your home via newspapers and television, you can help children cope with the anxiety that violence, death and disasters can cause. This fact sheet tells you how to respond to questions children may have about tragedies and how to manage children's reaction to stress according to their developmental level.