@gargron Note that the #FBI narrowly considered whether Ms. Clinton knowingly and intentionally transmitted secrets via her server, not broader issues of illegality. For example, all work-related communication must be stored in specific manner on federal servers (Fed Records Act), and preserved for specific time periods, hence, what she did was clearly illegal.
When an article starts out by missing such a basic piece of law relating to its topic, you can toss the whole thing.