"What I find interesting is the propensity to massively complicate and conspirify the world"

The verb your looking for is "Roswell".... as in, "The government didn't want the people to know what really happened in Dealey Plaza on November 22nd, 1963, so by using techniques like planting fake evidence, employing misdirection and discrediting witnesses they Roswelled the whole thing to hell and back. The events have been so Roswelled that it's unlikely we'll ever know exactly what happened."

:-)