No doubt that data is suppressed at various levels for political/personal agendas. The military climate is such that one fears telling the truth because it is inconvenient to one's "superiors".
Then, there's the plain old head-in-the-sand trick where those who are supposed to use/act on the data simply stick their fingers in their ears and loudly chant "LA LA LA LA LA" as they ignore data that makes them look bad - as if adding crap to one's resume doesn't make it stink even worse.
It is the 60’s leftist ideology, a mish mash of ‘communist’ ideas, a refusl to ackowledge there is evil in the world and an old “hippie peace love/ nature is beautiful” mantra.
Its not about reality.