Garrison
Donor
I think the problem is that if not well handled, it would simply degenerate into sounding like someone writing about an actual conspiracy theory from OTL. If everything was done secretely, you would assume that the timeline would bear little to no overt changes so it wouldn't be much of alternate history.
No sorry I mean a timeline where the conspiracy is revealed in the aftermath, something more akin to Watergate with some minor mistake leading to the whole awful truth coming out rather than the fantasy ubersecret versions the CT's put about.