There was a time in the USA when social change was very hard, too. There were magnificent leaders that sought to move the country to a better place. No one quite states it like the Late Attorney General Robert F. Kenndy.
RFK was at the center of the civil rights movement as was his brother, the Late President John F. Kennedy. The 1960s saw the loss of some of the greatest leaders of our time. We lost them through gun violence and assassination. Losing them may have been the greatest loss to equal rights in the United States of America.
We have been here before. We have witnessed the brutality of National Guardsmen shooting and killing on a university campus. We know it is possible and we know until yesterday it never happened again. That return of hate and desperation cannot return at the time when the country is demanding change.
C-Span also has a tape about this speech worthwhile to listen to (click here).