''(a) 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, torpedo station,
dockyard, canal, railroad, arsenal, camp, factory, mine, telegraph, telephone, wireless, or
signal station, building, office, research laboratory or station or other place connected
with the national defense owned or constructed, or in progress of construction by the
United States or under the control of the United States or of any of its officers,
departments, or agencies, 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, stored, or are the subject of
research or development, 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 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, Navy, or Air Force is being prepared or constructed or
stored, information as to which prohibited place the President has determined would be
prejudicial to the national defense; or
''(b) 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, blueprint, plan, map, model, instrument, appliance,
document, writing, or note of anything connected with the national defense; or
''(c) Whoever, for the purpose aforesaid, receives or obtains or agrees or attempts to
receive or obtain from any person, or from any source whatever, any document, writing,
code book, signal book, sketch, photograph, photographic negative, blueprint, plan, map,
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 receive or obtain it, that it has been or will be obtained, taken, made, or
disposed of by any person contrary to the provisions of this chapter; or
''(d) Whoever, lawfully having possession of, access to, control over, or being entrusted
with any document, writing, code book, signal book, sketch, photograph, photographic
negative, blueprint, plan, map, model, instrument, appliance, or note relating to the
national defense, or information relating to the national defense which information the
possessor has reason to believe could be used to the injury of the United States or to the
advantage of any foreign nation, willfully communicates, delivers, transmits or causes to
be communicated, delivered, or transmitted or attempts to communicate, deliver, transmit
or cause to be communicated, delivered or transmitted the same to any person not entitled
to receive it, or willfully retains the same and fails to deliver it on demand to the officer
or employee of the United States entitled to receive it; or
''(e) Whoever having unauthorized possession of, access to, or control over any
document, writing, code book, signal book, sketch, photograph, photographic negative,
blueprint, plan, map, model, instrument, appliance, or note relating to the national
defense, or information relating to the national defense which information the possessor
has reason to believe could be used to the injury of the United States or to the advantage
of any foreign nation, willfully communicates, delivers, transmits or causes to be