There was a court cse in Florida where a Fox affiliate fired two reporters because they woudl nto lie about Monsanto. They sued for wrongful termination and won, but Fox appealed and the appeals court ruled tht a coporation coudl require employes to lie as a part of their jobs. Which is part of why news in the U.S. has a lot garbage and really isnt' all that informative. Unfortunately under current court rulings, "freedom of the press" is freedom fo speech, which can include the freedom to lie.

The FCC has some control over content, but not enough to yank a license for broadcasting "fake news", otherwise Fox news woudl have been yanked a long tiem ago. They are bsically limited to pornography and profanityas justifications to yanking licesnses.