The President's News Conference
06/28/1972
https://www.presidency.ucsb.edu...
Efforts are also underway to cope with the problems of population growth and with the hijacking of aircraft and other forms of international...
We must harmonize highway transportation with our environment so that we can more fully enjoy the blessings of nature and the works of man.
Only by meeting these challenges today can we continue to enjoy the full benefits of our highway system tomorrow.
There would be no progress without the full-hearted support of an intelligent, energetic labor force.