At the age of 34, Dr. Martin Luther King, Jr. captivated a nation with his "I have a Dream" speech. At 35, he became the youngest person to receive the Nobel Peace Prize. Four years later, he was assassinated. But his legacy will live on as the nation's capital gets ready to officially dedicate a memorial to him on the National Mall. On Sunday, the nation dedicates that memorial, more than a month after a hurricane forced its delay.
