Fifty years on, most Americans still feel they have not been told the truth about President Kennedy's death. Chief Justice Warren, who chaired the first inquiry, said "some things" that "involve security" might not be released in our lifetime. Millions of pages of assassination records were finally made public in the late 1990s. Yet the CIA is withholding more than a thousand documents under "national security" — until 2017. Why? Why hold these records back if — as we were told half a century ago —Lee Harvey Oswald was a lone assassin? Anthony Summers set out to write a reliable account of the murder mystery that haunts America.