FJDG its not so secretive as many wonder or wish to be. FYI its used as an official civil ETOPS alt in the Indian Ocean, and some Civil airliners//airlines also are flying there from time to time. Portuguese (my country and aviation colleagues) Air Luxor, (nowadays HiFly) used to went there on very regular basis operating for UK and Oz DoD's with their A330s. Some videos and pics right here on my laptop btw.
Base has more than 3500 staff, between mil and civil, US&UK...so, they are all maintaining a T7 under their noses without saying a single word, sitting shiny on the paradisiac sunny ramp, and feeding/homing almost 300 souls including children in total secrecy?...dont think so
Another interesting theory to debate...how many pages this very thread are goin to reach?...i bet 373
PS: Indian Ocean its indeed immense and vast...as well as the West Xinjiang Province.