>>6804891 (/pb)
I think SIOSI links to the "missle" mis-spelling to tell us there is a mole within Skull&Bones/CIA.
My logic:
1) "missle" mis-spelling in Q #39, 426, 432 - should be "miss(i)le"
2) Take common letters "issi" out of "siosi" and "miss(ile)" and make word out of remainder:
MISSILE leaves MLE
SIOSI leaves O
Combine to get MOLE
3) Using the pattern from "Missle", take the "i" out of "siosi" to give "sosi" - anagram is OSSI
OSSI can be translated from Italian to BONES
https://translate.google.com/#view=home&op=translate&sl=it&tl=en&text=OSSI
This is i (or missile) #1