Will Shoot Alien Aviators.

New York Times 100 years ago today, February 15, 1913:
New British Airship Rule Becomes Operative Immediately.
By Marconi Transatlantic Wireless Telegraph to The New York Times.
    LONDON, Feb. 14.— The Aerial Navigation bill has received the royal assent and becomes operative immediately. Foreign airships now cross England at their peril unless their pilots declare the objects of their journey. Should pilots pass over forts, royal dockyards, or arsenals, they are liable to be shot at and killed.
    The terms of the new act will be communicated to foreign Governments, as well as the regulations to be made by the War Office. Aircraft passing prohibited places will be warned by smoke signals before they are fired at. Rockets or flashlights will be used at night. Experiments are in progress to find the best guns for use on and against aircraft.