On September 4, 1968, CIA director Richard Helms sent President Lyndon Johnson a 233-page report entitled "Restless Youth," only for the eyes of the president and his adviser Walt Rostow, who had requested the analysis. Helms warned the president of "the peculiar sensitivity which attaches to the fact that CIA has prepared a report on student activities both here and abroad." Under American law, the agency was permitted to surveil movements abroad but strictly forbidden to spy on American youth. The director therefore recommended that Johnson authorize the FBI to utilize "more advanced techniques' to investigate young radicals than laws at the time allowed.