This is kind of a secondary issue. But it’s important to focus on for a number of reasons. In the past, generally speaking, you could use formal communications and off the record briefings from federal law enforcement, within important parameters, as a guide to the state of an investigation. It’s a given that they would be sure to make you think that whoever they thought was guilty was definitely guilty. They could also be relied on to speak in the institutional interest of their department or agency. But for a general understanding of what an investigation had uncovered you could learn a lot from it, so long as these critical points of skepticism were borne in mind. Federal law enforcement, certainly off the record, could also often provide some constraint or filter on what the administration was saying. My point isn’t to romanticize the old system. But it was, from a journalistic perspective, often a key source of information.
In the current environment I think it’s fair to say there’s really no reason to believe anything we’re hearing from federal law enforcement, either formally or on background to reporters.