“ Whereas the United States is now at war; and Whereas there exists a serious and immediate potential danger of sabotage to national-defense material, national-defense premises, and national-defense utilities which may menace our maximum productive effort; and Whereas the Congress of the United States has in recent enactment recognized this danger by enjoining efforts to injure, interfere with, or obstruct the national defense, and providing severe penalties therefor ”

“ This order shall not be construed as limiting or modifying the duty and responsibility of the Federal Bureau of Investigation, Department of Justice, with respect to the investigation of alleged acts of sabotage. ”