Known as the President’s Daily Brief- President Barack Obama is the first to swipe through his on a tablet – they are tightly guarded rundowns of CIA intelligence from around the globe.

That report, given to Kennedy a day before the end of the Cuban Missile Crisis, is among roughly 19,000 pages of newly declassified Central Intelligence Agency documents from the Cold War released Wednesday.

He describes the briefs as “among the most highly classified and sensitive documents in all of government”. CIA Director John Brennan and Director of National Intelligence James Clapper released the documents at a conference at the Lyndon B Johnson Presidential Library in Austin, Texas. The briefs in the days following Kennedy’s death also say nearly nothing about the assassination, except for a how it apparently “acted as a catalyst” in ending a political stalemate in Italy.

As presidents change, so does the brief. “More SAM sites along the north coast”.

In a report from October 26, 1962, President Kennedy was alerted to the Navy forcing a Soviet Submarine to the surface about 350 miles from Bermuda. Take the 1968 Soviet invasion of Czechoslovakia, where the August . 15 brief notes the movement of additional Soviet divisions into Poland “are sign that Moscow remains uneasy about developments in Czechoslovakia”.

“And he’s the man who fights the bull”.

The CIA’s bulk release of the President’s Daily Briefs (PDB’s) from the 1960s is noteworthy because the agency had previously been opposed to the release of any of the documents. Oswald was shot dead by night club owner Jack Ruby two days later.

Press stories to the effect that Lee Harvey Oswald recently visited Mexico City are true, according to our information.

“For students of history the declassified briefs will lend insight into why a President chooses one path over another when it comes to statecraft”, Brennan said.

He said President Kennedy wanted a better way to stay informed after he was caught off guard by several developments on the intelligence front with the Bay of Pigs in April 1961.

They include early intelligence on a range of historic events like the erection of the Berlin Wall in 1961, the Gulf of Tonkin incidents, China’s first detonation of a nuclear bomb and the Six Day War in 1967.

He said: “These are an incomparable window into how a president thinks”.

“When we’re reading these, it’s a mirror image of what the president’s concerns were.”

“The document was seven-pages long and printed on short square blocks of paper”, explained Brennan.

The second-in-command, Vice President Johnson at the time, was left out of the loop.

The P.D.B. was created for President Kennedy who was getting bogged down with paperwork.

The briefing went through a makeover and became the PDB on December . 1, 1964.