John Kennedy actually said...
By virtue of the authority vested in me as President of the United States, including authority vested in me by Reorganization Plan No. 1 of 1958 (72 Stat. 1799), and by section 606 of the Communications Act of 1934, as amended (47 U.S.C. 606), it is hereby ordered as follows
Context
Executive Order 11092—Assigning Emergency Preparedness Functions to the Federal Communications Commission
02/25/1963