Lyndon Johnson actually said...

"Our unequalled highway network, constantly being expanded and improved, makes us the most mobile country in the history of man"

"Your career, Admiral Raborn, has been long and it has been outstanding."

"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."