IAWTP! People talk, and many would be willing to sell a story that sensational for mega-bucks IF IT WERE TRUE.
I'm with you. If more than one person was involved in such a monumental cover-up, someone would have leaked. It's human nature and second nature to politicos (right after lying).
No way could this have been kept a secret.
Folks who got loose lips around the Clintons seemed to have a habit of waking up dead in the morning...