United States Secret Service and Unites States Department of Education, 2004. Littleton, Colo.; Springfield, OR; West Paducah, KY; Jonesboro, AR. These communities have become familiar to many Americans as the locations where school shootings have occurred in recent years. School shootings are a rare, but significant, component of school violence in America. It is clear that other kinds of problems are far more common than the targeted attacks that have taken place in schools across this country. However, each school-based attack has had a tremendous and lasting effect on the school in which it occurred, the surrounding community, and the nation as a whole. In the aftermath of these tragic events, educators, law enforcement officials, mental health professionals, parents, and others have asked: "Could we have known that these attacks were being planned?" and "What can be done to prevent future attacks from occurring?"