He pointed out that, contrary to law, the White House was refusing to release thousands of pages of documents about the assassination of John F. Kennedy on November 22, 1963. Carlson said that these documents proved CIA involvement in the assassination and that someone within the government who had looked at these documents made a direct statement to this effect.

Here is what Carlson said: "Not long after Jack Ruby shot Lee Harvey Oswald on camera in the basement of Dallas police headquarters, a lot of Americans started to have some questions about the Kennedy assassination. It was, you'd have to admit, a pretty extraordinary sequence of events. A lone gunman murders the president of the United States. And then, less than 48 hours later, that lone gunman is himself murdered by another lone gunman.

What are the odds of that? It's one thing if you get struck by lightning – rare but possible. But if every member of your family also gets struck by lightning, all on different days, you might begin to suspect these are not entirely natural events. But oh, replied the U.S. government, they are. This bizarre chain of killings was all entirely natural.

So less than a year after the JFK assassination, the Johnson White House released something called the Warren Commission Report. And the report concluded that while their motives remained unclear, both Lee Oswald and Jack Ruby had acted alone. No one helped them. There was no conspiracy of any kind. Case closed. Time to move on.

And many Americans did move on. At the time, they had no idea how shoddy and corrupt the Warren Commission was. It would be nearly 50 years before the CIA admitted under duress that in fact, it had withheld information from investigators about its relationship with Lee Harvey Oswald.