Despite its greatness, Dr. King’s ‘I Have a Dream’ speech has become a bromide and an empty promise — It’s probably sacrilege to criticize the 1963 March on Washington and Dr. Martin Luther King, Jr.’s, famous “I Have a Dream” speech. Especially during the 60th anniversary of the celebrated event. But surely, enough time has passed to look at the speech without tears. Without going to pieces over the…