You have not provided (and cannot provide) any proof to back those additional assertions, as such they do nothing to improve your argument.
> What makes a journalist a better place to whistle to than an elected politician on the intelligence committee or any one of a number of other options?
A history of actually doing their jobs in this regard.
> What makes a journalist a better place to whistle to than an elected politician on the intelligence committee or any one of a number of other options?
A history of actually doing their jobs in this regard.
https://en.wikipedia.org/wiki/Deep_Throat_(Watergate)