There are so many other corrupt things government is doing that they are totally open about, or if not are easily verifiable and the source material is all out in the open. There's absolutely no reason to ever need to rely on poorly sourced or questionable information to make a point about government being corrupt.

I feel like first we need to get more people on board with the fact government is 100% corrupted, then we can go searching for the full extent of corruption. Until then, it is best to stick to easily verifiable stuff, as the less verifiable and more outlandish something is, the more likely the people that need to hear about government corruption will ignore it.