A former secretary and assistant secretary of defense under Clinton divide threats into those to US survival, of which they see none now; to US interests, as in the Persian Gulf and Korean peninsula; and to US security, as in the former Yugoslavia and parts of Africa. They propose pro-active approaches to keep potential threats from developing into real ones. Perhaps to establish their credentials, they include photographs of themselves in various famous situations. Annotation c. Book News, Inc., Portland, OR (booknews.com)