JFK's greatness really was what he wanted to do in particularly his second term as President not what he accomplished in his less than three years before he was assassinated. JFK had planned to exit Vietnam and work with Nikita Khrushchev for a détente and an eventual teardown of the Berlin War. He wanted to clip the Deep State (CIA/FBI) powers and eliminate the Federal Reserve in favor of a national bank. He desired civil rights that would give a hand up to the poor not the token hand outs to keep minorities voting Democrat. Finally, after realizing just how dirty and corrupt Johnson was he wanted him off the ticket in 1964. Johnson was forced on JFK similar to the way in which Truman had been forced on FDR in 1944 (the same situation occurred in 1940 but a physically and mentally stronger FDR threatened to reject the nomination if Wallace wasn't on the ticket).
In this first term he of course avoided what could have been a planet ending war with Russia over Cuba. This was after the dark Bay of Pigs failed invasion in which Kennedy came to understand how easily he could be duped by supposedly trusted advisers. he vowed never to be taken as a fool again.
Now more than 55 years later, more and more Americans believe that JFK was murdered because his vision of the country did not fit in with the Deep State, the neocons and the thief Lyndon Johnson. Recent surveys shows that more than 75% of Americans doubt the Warren Commission and just as many believe the US would be a far better place today if Kennedy lived and was voted in for a second term.
JFK like FDR was raised in privilege and wealth. His father Joseph was considered crooked and to have used insider information to personally gain off the stock market crash in the late 20s and early 30s. FDR was said to have put him in as the first chief of the SEC because FDR believed it took a liar and crook to capture a liar and crook.
Unlike today, in WW2 rich men served in combat right alongside poor men. JFK's PT boat was rammed during the war with Kennedy suffering a back injury that bothered him for life. He is said to have saved multiple lives that night. My father served in the Asian theater and to him JFK was a saint. As a very small child (4 years old at the time) I remember my mother crying all day and went to pieces when my father game home from work the day JFK died. Its as if something had been stolen from my parents and eventually my generation and others to follow.
Kennedy's Attorney General was Bobby Kennedy, which shared JFK's ambitions. In 1968 Bobby Kennedy was well on the way to winning the nomination for the Democratic Party when he too was gunned down under similar questionable circumstances. Again many point to the belief the Deep State protecting its interests. Also, Bobby shared the vision of Martin Luther King and Southern Democrats wanted no part of raising people up.
Rumors have circulated for years that Johnson kept Bobby quite during the subsequent years by threatening to release salacious details of JFK's womanizing. JFK like many other great leaders had his own demons and adultery was one of them, including White House liaisons with Marilyn Monroe. Later it was believed that Bobby would no longer go along with the blackmail once in Office and would tell the truth about his brother's death.
There likely will never be a formal omission of a cover up. What we now live with are the events afterwards that have had a negative impact on our country. We squandered billions on Vietnam not to mention the trillions on nuclear defense for a Cold War that should have never continued. We lived under the thumb of the Federal Reserve as it protects the interests of Wall Street over Main Street. More importantly, the assassination of JFK gave the Deep State and its neocon faction the victory it needed to control politicians and wage endless wars and conflicts. Eisenhower warned us and Kennedy paid the ultimate price for taking the mantle up after Eisenhower.
Kennedy saw a different vision of the US. A country that lead science and technology and gave its citizens the ability to fully participate and benefit from a then changing world. Kennedy believed the US could be the land of plenty for most Americans and that eliminating much of poverty was possible. He envisioned a US at peace and focusing on internal prosperity. Its said the American Dream may have come to die the day JFK died. Unfortunately, there is some truth in that statement.
Finally, JFK reminded us that our duty is to our country in his famous words "ask not what your country can do for you but what you can do for your country." Before I die I hope to one day visit Arlington Cemetery again (I visited as a kid as my parents forced us all to visit Kennedy's gave) and whisper to President Kennedy I have come to understand.