The idea that you only publish once every piece of information is in and fully vetted is a false construct.

If you know the FBI is investigating, say, a presidential candidate, using significant resources and with explosive consequences, that should be enough to write. Not a “gotcha” story that asserts unsubstantiated facts. But a piece that describes the nature of the investigations, the unexplained but damning leads, with emphasis on what is known and what isn’t.