Jefferson Morley, editor of JFKFacts.org and a former Washington Post staff writer, says that the most significant JFK files not released, are tapes of interviews the historian William Manchester conducted with Jacqueline Kennedy, the late president’s wife, and his brother Robert F. Kennedy in 1964 and 1965 - who both, according to Morley, “Said privately JFK was killed by his domestic enemies. That’s what’s on these tapes and why they are so sensitive.”