Forty-seven years ago today, hundreds of thousands of Americans joined the March on Washington for Jobs and Freedom and witnessed the Rev. Dr. Martin Luther King Jr. deliver his "I Have a Dream" speech, which summed up the hopes of generations.
Today, crowds are repeating that trek – by bus, train, car and plane -- to the nation's capital, with their own hopes and dreams about what America should stand for.
Glenn Beck and Sarah Palin -- two conservative stars known more for their d...