DESPITE A wealth of information about the effects of disaster on children, few studies have assessed the effectiveness of treatment. The article by Chemtob et al1 in this issue of the ARCHIVES is a noteworthyexception. Treatment effectiveness is difficult to assess under the best ofcircumstances, and the difficulties are magnified in the aftermath of disaster.In light of the September 11, 2001, terrorist assault on our nation and subsequentterrorist events and threats, the article is especially timely.