Lyndon Johnson actually said...

"Under and by virtue of the authority vested in me as President of the United States of America, particularly with respect to the conduct of the foreign relations of this Nation"

"It is essential that Americans understand and appreciate the importance of highway transportation to their social and economic progress, and to the defense of our Nation."

"Modern vehicles travel at greater speeds over longer distances than ever before; we must make certain that they are equal to the rigorous demands placed upon them by modern high-speed travel"

"And you asked only that you might leave when a permanent director had been selected."