I was thinking at some tabloids, sure some anonymous can post fake stuff but if a journalists creates the fake image/video or documents then there should be more consequences. Also I am not from US so I am not targeting a specific camp, when I was watching news (I stopped years ago_ a lot of energy was spent on discussing insinuations, fake stuff or trivial things. I realized that politicians know how to throw the media some delicious bones to keep them busy with whatever they want.
Its called "accountability", something mainstream journalism doesn't seem to have in most places. Its just a fact that biased "news" get more clicks and thus more money. Its hard to define when "faking" starts and where its is just non-neutral reporting.