In news organizations fact-checkers are separate roles or department to independently check the statements made by journalists in their work. It's an additional

In news organizations fact-checkers are separate roles or department to independently check the statements made by journalists in their work. It's an additional layer. Same as there are grammar and style checkers although journalist can write correctly, some better some worse. And journalists work is not limited to checking facts alone. At least that was the case before the checkers started to get fired to save cost because online you can easily change errors after publication.