Even beyond AI, the vast majority of news is re-packaging information you got from somewhere else. AI can replace the re-writers, but not the original journalists, people who spoke to primary sources (or who were themselves eyewitnesses).
Any factual document should reference its sources. If not, it should be treated skeptically, regardless of whether AI or a human is doing that.
An article isn't automatically valueless just because it's synthesized. It can focus and contextualize, regardless of whether it's human or AI written. But it should at the very least be able to say "This is the actual fact of the matter", with a link to it. (And if AI has hallucinated the link, that's a huge red flag.)