Stay in contact with sources that are tied to certain sensitive topics, such as the 2017 story where she refused to give up her source.
If that source(s) suffers a mishap such as Vince Foster or Ron Brown, then you know how they were found out.
A case could be made that CBS is an accessory, along with any executives/employees cooperating in handing over the sources.
That in itself is a HUGE story. At least one media network couldn't be relied upon to report on it. And it probably wouldn't get mentioned on MSNBC or CNN.
And then there is the question of a broadcasting license.....
Excellent comment.