Lyndon Johnson actually said...

This technology could prove to be the key that will unlock the door to economic growth for many of these nations.

This is a very proud and a very happy occasion for all of us here, and I think it is a proud and happy occasion for all Americans everywhere...

I look forward to meeting with you and to having the benefit of your advice and recommendations.

So if Klansmen hear my voice today, let it be both an appeal and a warning to get out of the Ku Klux Klan now and return to a decent society...