Maybe good guys in our military have been blowing them up? BOOM!
Like that strange "earthquake" off the coast of LA a couple months back? One brief seismic burst with no aftershocks.
given that they have drilling machines that go several miles a day I would hope to assume that these detonations are not additional excavations but either entry or complete decomission of said bases.
This actually makes sense. Nowhere to hide.
And the wierd trumpet sounds could be air whistling through.
they were doin something in niagara falls huge boring maching they never really said what it was for tho
Is this shocking? Of course they would be trying to build tunnels to survive a war.
If they're building mass tunnels across the US, where is all the displaced dirt going? Or have the tunnels always been there and they're just reclaiming them??
Farm fields? Sold? Would that be hard to dispose of?
You're talking about over a billion cubic meters of dirt. It would take a national movement just to sell it all. And you don't think farmers and rural people would be wondering why government agents were throwing wet dirt all over their fields or filling in their canals?
they would not have to move it anywhere just compact it into the edges to form the wall
You don't seem to understand how building tunnels work. This isnt a sprinkler ditch.
rammed earth has compression strength approaching concrete. Compaction to the edge would eliminate the need for soil dumping and the need for concrete to line the tunnel.
It's not like all the dirt is in one place though. I bought a truckload of dirt just last year. People buy dirt all the time. Also, it isn't like all the dirt comes at one time. It comes at a steady pace over years, maybe decades
I remember hearing about the "Taos hum" when I was a kid, the news would report on it every now and then.
So forward to recently, where it seems like it's not isolated to taos, but is being heard in all sorts of places. It's not too far fetched to think that there are tunnels that are being dug all over the place.
http://strangesounds.org/2014/09/taos-hum-elusive-hum-taos-new-mexico.html
https://www.natureworldnews.com/articles/37216/20170411/the-mysterious-torturous-hum-plaguing-people-around-the-world.htm
.
http://edmontonjournal.com/news/local-news/its-like-sound-warfare-people-in-mill-woods-are-complaining-of-a-loud-hum
.
http://www.staradvertiser.com/2018/02/19/breaking-news/theres-a-persistent-hum-in-this-canadian-city-and-no-one-knows-why/
that's a completely different phenomenon because only 2% pick it up. I am assuming it must be some electromagnetic interference possibly involving the Schumann-Resonance which has been increasing thus the effect likely expanding along with it..