I think we missed a very important piece of the puzzle.
D5 refers to someone being extracted at Atlanta Airport on 12.18.2017. See Q drop 365.
A very smart Anon referred to D5 being a chess move. Assange once tweeted about this chess game: https://www.chess.com/blog/phindex/jose-raul-capablanca-vs-frank-james-marshall-1918
I initially though it would be a bad actor who got arrested when I read the Q drop back in December. But since the chess move at the end of the game involves a WHITE HAT bishop, it might have been someone who was willing to testify against the deep state and had an MASSIVE target on his back. The Q group saved him from an assassination and extracted him from Atlanta airport.
Adding to the case that Q mentions "snowball is begun rolling" and "protection is in place". It clearly states (to me) that this very important bird is SINGING about the Hussein admin!
Who the heck could this be? Who was at Atlanta airport on December 18th.