But I can see cameras with cell chips inside and auto-upload to an authentication service with the location verified by cellular triangulation.
A tangent but I think journalism is going to start to actually mean something. Historically I think it's been most problematic bullshit, and especially in the past few decades it's pure propaganda and greed and profit. But in an age where we can't trust literally anything we see, it's the reputation of specific humans we'll trust, and we'll have to trust that if they say they saw something, it was real. We'll start to see "real" journalism.
Previously, such manipulation was possible via manual methods requiring time and unique skill which limited it to highly motivated, organized adversaries and it was much more useful because most people weren't aware it could be done. IMHO, all the AI examples we're now seeing bemoaned in the media as signs of future manipulation are, in fact, rapidly diminishing the effective value of such deception.
Before someone brings up future screen tech, there are additional reasons that's not a trivial workaround. Additionally there's a higher benefit to having high resolution cameras which have a wide field of view and the user may want to zoom in on the physical data vs a screen where the zooming happens in software.
Of course, nothing stops anyone from lying under oath. Police do it every day.