The Wall Street Journal:
This week marks the 50th anniversary of the 1963 March on Washington for Jobs and Freedom, which is known today primarily as the occasion of Martin Luther King's magnificent "I Have a Dream" speech. Such anniversaries generate a great deal of mundane commentary to the following effect: There is no denying we've made significant strides toward equality since Dr. King spoke, but we still have a long way to go, and enacting my preferred policies will help us get there.
The weakness in such a line of thinking is the assertion that "we still have a long way to go." Perhaps such an assertion was plausible in 1973, or even 1983. But it's 2013 and a black man is president of the United States. Is it remotely possible that the glass is still half empty?
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