In this address, Eisenhower spelled out the necessity of repurposing existing nuclear weapons technology to peaceful ends, stating that it must be humanity's goal to discover "the way by which the miraculous inventiveness of man shall not be dedicated to his death, but consecrated to his life".
In this address Dr. King spoke about income inequality and the redistribution of wealth, protesting the Vietnam war, and vilifying the White House.
In this address, he elaborated a very different tact than the September 11 Museum takes in its educational programming and in its film.
Mr Obama's irritation on being unable to enact meaningful gun reforms during his presidency began to show in this address.
In the context of the considerable challenges and opportunities I've touched on in this address, this kind of instability is simply intolerable".
There was no moment like that in this address, although the sight of Obama embracing Giffords conveyed genuine joy, and that of an Arizona Republican, Jeff Flake, helping her stand up to cheer for him, real friendship.
