A puzzle. Yummy. I’m in.
Easiest crumbs first:
In the first solved passage, “illusion” is misspelled as “iqlusion”.
The 38.9518N x 77.1455W in the second solved passage points at the CIA Building just a bit to the South of the West Main Entrance (I’m open to correction on this...don’t have a building plan) and the “Level 2” would indicate second floor, except that’s not congruent with “it’s buried out there..”.
The third solved passage, besides differing from the descriptions in Carter’s Diary (I’m guessing it to be a dramatized rewrite for publication) has another “q” at the end of the quote.
Two letter “q” and something buried in the CIA building...
I’ll start looking at the tablets a bit more after I get some chores done.
BBL
Think level 2 below ground level. We live from the ground up in the open for all to see. These people want as far away from the light of day as they can get!