Read this article carefully and you'll see the key piece of evidence was sent to the Smithsonian - and then promptly vanished, never to be photographed or displayed ever again.
That copper coin with two human figures would be the deal breaker ... so they packed it up and put it away where it will never be found. Along with all the forbidden discoveries they are recorded in the history books as receiving from all over North America for 200 years.
I'm sorry if this might be testing your suspension of disbelief so I will describe the exact mechanism of how they were able to stash the bulk of it away forever after the death of John F. Kennedy.
After Kennedy was assassinated, the civil defense program he had funded and set into motion was immediately disbanded. That funding was steered into programs to provide for continuity of government and a popular movement in the sixties to "preserve cultural treasures" after nuclear war. The whole program got twisted around and actually turned into funding for sealed underground tombs where the majority of the most important secret archaeological finds the Smithsonian was sitting on top of were sequestered behind concrete. There are supposedly only a half dozen people left alive in Washington who even know where the entrances are and how to open them - some of them are apparently built clandestinely beneath Washington landmarks.
Here is what I think is the motivation behind all of this skullduggery.
They don't want Americans to see a copper coin dated at 30,000 years B.C. which has a pyramid with an eye at the top of it identical to the one on the dollar bill they use every day. 'Nuff said. As dumb as people are, if they saw all the evidence even the slowest person amongst them would realize that the history they have been taught is all bunkum. Just as scripture told them, the ancient world was ruled by a race of giants with red hair, six fingers, two rows of teeth and melonheads. They ran a worldwide seafaring empire that enforced a common language for at least 12,000 years all over the planet and seemed to be invulnerable until something happened that ended up in mythology as the "Destruction of Atlantis." We may never know what really happened but all these ruling families ended up scattered across the planet and have been butthurt over it ever since. They've been trying to organize their great Tower of Babel again for tens of thousands of years and lately they have been achieving stunning success in working towards this goal. The last thing they need right now is common people viewing their ancestor's bones on a slab or in a glass cabinet and wondering just what in the hell is really going on down here.
I am certain that if these vaults were ever opened we'd find a lot more stuff in them than just surplus from the Smithsonian. We'd probably find all the long skulls from the Island of Malta.
Remember, Neanderthals were here long, long before all of these idiots and we will be here long after they are gone. Their precious worldwide globalist empire and all their kingdoms are just a little jot of time during a little summer breeze called the Holocene. What all of these races have in common, including their slaves, is they are all just dilettantes and flash-in-the-pan try-hards. Neanderthals have slept or dozed during epochs that exceeded all their reign on the planet for the last 40,000 years. We are men and women who are natural features here and the Creator gave us dominion over the earth, his favorites, the Adam, the "man who shows blood in the face." If there were ever a way to describe the Neanderthal it would be the man who shows blood in the face. My buddies in the Army used to say, technically, I wasn't a white man. I was pink. From the mouths of babes.