And how do you expect a panel of experts to escape groupthink and rule fairly in cases where the expert consensus turns out to be incorrect?
Both of those goals are impossible to achieve.
If a medication is approved and then a new risk factor is identified the issue goes from unproven to validated but if it wasn't based on nothing it was never a lie.
The covid vaccine containing a chip to track you was always a lie.
We don't need a ministry of Truth we need a ministry of obvious bullshit.
Substitute "online misinformation postings" for "murders" above.
The point is just because something is difficult to eliminate is not a good reason to give up trying to eliminate it.