The political cornerstone laid by the United States in 1903 for the Panama anal has had rough edges since the beginning. Just over sixty years later the uneven enor of U.S.- Panamanian relations erupted into the bloody Flag War of January, 1964, emanding a quick and hopefully more effective reappraisal of America's Zone policy. Here is the detailed history of the Canal since 1903-- the defense against German, Japanese and Communist plots, the treaties establishing and securing free transit, and the continual friction of U.S. control insured by the ""perpetuity clause."" The author presents a well-documented factual summary, emphasizing current Communist activity from active Cuban infiltration to the continuing post-war ""Hate America"" campaign. Our position is somewhat uncomfortable (cf. Teddy Roosevelt's ""I took Panama"" and the present onomia accusations), but equally discomfiting is the possibility of Communist penetration or a disorganized Canal administration. The Flag War need not have occurred, this author claims, but it has; and the responsibility of the U.S. government now lies in maintaining the Canal as a free and functioning route without abandoning the security measures necessary to the defense of the Americas. A quieter report than one might anticipate from his earlier, more controversial books which appeared on other lists.