1.0 link 122196 http://www.huffingtonpost.com/randi-weingarten/fulfilling-the-promise-of_b_122196.html DENVER -- We've heard a lot of great speeches in Denver this week, and I have no doubt that Barack Obama's speech tonight will be among them. But it's a speech delivered 45 years ago today that's been running through my head recently. I'm thinking, of course, of the "I Have a Dream" speech in which Martin Luther King Jr. spoke of America's unfulfilled promise of equality, dignity and opportunity for all, and of his hopes for the kind of...

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