Live Video: JFK 50th anniversary memorial serviceMemorial services to honor the life, leadership and legacy of President John F. Kennedy on November 22, 2013, the 50th anniversary of his deathPeople visit the gravesite of former U.S. President John F. Kennedy at Arlington National Cemetery Nov, 22, 2013.Nov. 22, 2013, 5:33 PM UTCBy MSNBC staff, MSNBC staff