"OVER 200 YEARS AGO, A GROUP OF VOLUNTEERS GATHERED ON THIS SACRED SPOT TO FOUND A NEW NATION". In perfect words, they voiced their dreams and aspirations of an imperfect world. They pledged their lives, their fortune and their sacred honor to secure inalienable rights given by God for life, liberty and pursuit of happiness - pledged that they would provide them to all who would inhabit this new nation.

They look down on us today in spirit, with pride for all we have done to keep faith with their ideals and their sacrifices. Yet, despite all we have done, this is still an imperfect world. We still live in an imperfect society. Despite more than two centuries of moral and material progress, despite all our efforts to achieve a more perfect union, there are still Americans who are not sharing in the American Dream. There are still Americans who are not sharing in the American Dream. There are still Americans who wonder: is the journey there for them, is the dream there for them, or, whether it is, at best, a dream deferred.

The great American poet, Langston Hughes, talked about a dream deferred, and he said, "What happens to a dream deferred? Does it dry up like a raisin in the sun, or fester like a sore and then run? Does it stink like rotten meat or crust and sugar over like a syrupy sweet? Maybe it just sags, like a heavy load. Or, does it explode?"

For too many young Americans, that dream deferred does sag like a heavy load that's pushing them down into the ground, and they wonder if they can rise up with that load. And as we see too often in our daily life, it does explode in violence, in youngsters falling dead, shot by other youngsters. It does explode, and it has the potential to explode our society.

WHAT GROUP WAS IN HE TALKING ABOUT IN THE BEGINNING OF THIS SPEECH?