There should be an option to suppress journalism in your country, and stop them from posting stuff about you in the newspaper. I don't like letting my enemies know my casualties, what I've built, who I bombed, etc. It's just like handing free espionage to the whole world. Obviously, doing so will reduce morale in all your provinces and you will lose popularity with the A.I., there'll also be an article in the newspaper stating that you've banned journalism in your country so that other players'll know.

Maybe you can pay them to "exaggerate" their findings instead.