Link me to a source where this information that the reporters knew and didn't report on it. Also, was JFK a pedo and this wasn't reported by anyone? Sources? You do understand there is a huge difference between pedophilia and consensual sex between adults yes?
There is no clear instance since you are just making stuff up, post evidence that WaPo reporters knew JFK was a pedo and ignored those rumors.
Amusing -- coming from the guy who constantly insists that Trump raped a 13 year old -- which is completely dis-proven.
You can go read the books about the Washington Post yourself to eliminate your ignorance. I am not going to spend hours researching and posting links that you never read on a subject which has been well-documented by authors who were Washington Post reporters. Go to Amazon and make some purchases in the book section and learn something.