Secretary Gates delivers opening remarks at the annual observance of Martin Luther King Day. Secretary of Defense Robert M. Gates delivers opening remarks at the Pentagon's annual observance of the legacy of the human-rights advocate and Nobel Peace-prize recipient Dr. Martin Luther King Jr. on Jan. 14, 2010. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 962215-L-VJE60-053.jpg Photo Gallery