It's easy to dismiss the authors' claims of artifacts of intelligent design on the moon and Mars as well as the existence of three "secret society" factions embedded in NASA in its earlier years when the information is just blatantly presented. I've read Hoagland's earlier work, The Monuments of Mars, and I must admit that his research tactics and reasoning have remained consistent in the twenty or so years since that book was published. Do I believe everything that the authors claim in this new tome? No. Do they present their case in a careful, documented, honest manner? Yes.
The book is rather dry, but that's not necessarily a criticism. To approach this information with several degrees of seriousness is far better than falling into some New Age Crap a la David Icke (though, some of his research is actually solid and corroborated, he just spins into wild speculation too often). Having said that, I will address my views of the information presented in Dark Mission briefly.
Hoagland and Bara's claims of ancient, ruined glass structures on the moon is difficult for me to accept based on the photographic evidence they provide. I just don't see it 75% of the time. Some aspects, of their moon theories have a ring of truth to them (and, for the record, they dismiss the "faked moon landings" theories at the outset, as do I), especially when NASA's true inception as a "defense agency" is taken into account. This is indisputable fact. NASA's inconsistencies and possible cover-ups and suppression of information is well-documented and corroborated by other sources, so it is completely within the realm of possibility that ancient, ruined structures have been discovered on Mars and spun into the areas of speculation by an organization that is bound to keep "defense secrets" and prevent "public panic" based on a Brookings Institute report circa 1950's.Incidentally, the existence of this Brookings report is also known fact, however we could debate its influence on government agencies' policies, though such findings have been followed in other areas by the federal government to a "T" over the years. At the very least, the authors make a strong case for anomalies on both Luna and Mars that bear further study, and provide evidence (in the case of Mars) that NASA has clandestinely pursued further studies, only to dismiss claims of artifacts with the same tactics again and again.
Interestingly, the authors' claims about the influence of three secret societies within NASA (in its early years, anyway) is what ostracized them from other Mars Monument researchers, and these are the claims that I find the MOST believable. It's true that Nazis were recruited into various positions within the government following World War II. It's also true that Jack Parsons, co-founder of JPL, was heavily into occult rituals and practices. And it's also true that Freemasonry has always had a strange, strong hold over many aspects of our government (see The Secret Architecture of Our Nation's Capital: The Masons and the Building of Washington, D.C. by David Ovason, as well as several works by Manly P. Hall). Hoagland and Bara stretch the theories of ritual dates a little thin towards the end of the book, losing the string of actual ritualistic dates and practices and unnecessarily replacing them with sort-of trivial NASA anniversary dates. The case for secret societies' involvement in setting NASA plan and policies had been made, and was substantiated through the '70's. Beyond that, the evidence gets thin.
In my opinion, any free-thinking, reasonably intelligent person will finish this book and, at the very least, question what information has been disseminated from what many believed (erroneously) was a civilian institution dedicated to the exploration of space. Our solar system (not to mention Earth and the universe itself) is a vast and mysterious place and to assume that we have learned even 1% of its secrets is incredibly arrogant. This book is recommended for anyone who has a strong curiosity about outer space, Man's place in the universe and history, and, of course, people who find "conspiracy theories" (though I now, generally, despise that term) interesting.