Millions of documents related to the 1963 assassination of President John F. Kennedy in Dallas have already been made public, but President Donald Trump has ordered the release of thousands of still-classified files.

FILE - President John F. Kennedy waves from his car in a motorcade in Dallas, with first lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her husband, Texas Gov. John ...

Kennedy waves from his car in a motorcade in Dallas. Riding with Kennedy are First Lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her husband, Texas Gov. John Connally ...

FILE - President John F. Kennedy waves from his car in a motorcade in Dallas, with first lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her husband, Texas Gov. John ...

FILE - President John F. Kennedy waves from his car in a motorcade in Dallas, with first lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her husband, Texas Gov. John ...

US President Donald Trump ordered the declassification Thursday of the last secret files on the assassination of the late US President

Despite a landmark 1992 law intended to ensure transparency, thousands of documents related to President John F. Kennedys 1963 assassination remain classified. A newly revealed bureaucratic struggle between agencies like the CIA,

President John F. Kennedy waves from his car in a motorcade in Dallas, with first lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her

Donald Trump has ordered the declassification of files related to the assassinations of John F Kennedy, Robert F Kennedy, and Martin Luther King Jr, hoping it may shed new light on decades-old controversies.