I can see that in terms of social media and ragtag reporters, but under subpoena and if Congress will only enforce whistleblower protection, some of it will come out. Hope it's the thread that unravels the rest.
For those with short memories Congress did have a three year long investigation of the JFK assassination in 1974-1976.
Sam Giancana was murdered just before the hearings.
John Roselli was murdered right after he testified.
The Deep State plays dirty.