Section 4
SEC. 4. Paragraph (a) of section seven of said Act is amended to read as follows: "(a) Flying over prohibited areas; aerial photography; carrying of photographic equipment in aircraft. - No air-craft shall be operated or navigated with the limits of prohibited areas defined in proclamations or executive orders from time to time issued by competent military and civil authorities, including the. President of the United States, and the President of the Philippines. No airman or passenger of an aircraft shall take aerial photography or picture by photograph or sketching of any part of-the Philippines: provided, however. That this provision shall not apply to aerial photography, or picture by photograph or sketching of any part of the Philippines officially made by the United States and Philippine Governments and by agencies expressly authorized by the President of the Philippines. "No aircraft other than those of the United States and Philippine Governments shall carry any apparatus instrument, or device which can be used for aerial photography or taking picture by photograph or sketching of any part of the Philippines without first securing written permission from the President of the Philippines."