736 PUBLIC LAWS-CH. 645-JUNE 25, 1948 [62 STAT. prisoner of war or enemy alien, after his escape from custody, knowing him to be such prisoner of war or enemy alien, or attempts to commit or conspires to commit any of the above acts, shall be fined not more than $10,000 or imprisoned not more than ten years, or both. The provisions of this section shall be in addition to and not in sub- stitution for any other provision of law. CHAPTER 37.- E SPI ON AGE AND CENSBOSHIP Sec. 791. Scope of chapter. 792. Harboring or concealing persons. 793. Gathering, transmitting or losing defense information. 794. Gathering or delivering defense information to aid foreign government. 795. Photographing and sketching defense installations. 796. Use of aircraft for photographing defense installations. 797. Publication and sale of photographs of defense installations. § 791. SCOPE OF CHAPrER This chapter shall apply within the admiralty and maritime juris- diction of the United States and on the high seas, as well as within the United States. § 792. HARBOING OR CONCEALING PERSONS Whoever harbors or conceals any person who he knows, or has reasonable grounds to believe or suspect, has committed, or is about to Infra; pog, p. 77. commit, an offense under sections 793 or 794 of this title, shall be fined not more than $10,000 or imprisoned not more than ten years, or both. § 793. GATHERING, TRANSMITTING OR LOSING DEFENSE INFORMATION Whoever, for the purpose of obtaining information respecting the national defense with intent or reason to believe that the information is to be used to the injury of the United States, or to the advantage of any foreign nation, goes upon, enters, flies over, or otherwise obtains information concerning any vessel, aircraft, work of defense, navy yard, naval station, submarine base, fueling station, fort, battery, tor- pedo station, dockyard, canal, railroad, arsenal, camp, factory, mine, telegraph, telephone, wireless, or signal station, building, office, or other place connected with the national defense, owned or constructed, or in progress of construction by the United States or under the con- trol of the United States, or of any of its officers, departments or agen- cies, or within the exclusive jurisdiction of the United States, or any place in which any vessel, aircraft, arms, munitions, or other materials or instruments for use in time of war are being made, prepared repaired, or stored, under any contract or agreement with the United States, or any department or agency thereof, or with any person on behalf of the United States, or otherwise on behalf of the United States, or any other prohibited place so designated by the President by proclamation in time of war or in case of national emergency in which anything for the use of the Army or Navy is being prepared or constructed or stored, information as to which the President has determined would be prejudicial to the national defense; or Whoever, for the purpose aforesaid, and with like intent or reason to believe, copies, takes, makes, or obtains, or attempts, to copy, take, make, or obtain, any sketch, photograph, photographic negative, blue- print, plan, map, model, instrument, appliance, document, writing, or note of anything connected with the national defense; or Whoever, for the purpose aforesaid, receives or obtains or agrees or attempts to receive or obtain from any person, or from any source what- ever, any document, writing, code book, signal book, sketch, photo- graph, photographic negative, blueprint, plantmap, model, instrument, appliance, or note, of anything connected with the national defense, knowing or having reason to believe, at the time he receives or obtains or agrees or attempts to receivorrobtain it, that it has been or will
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