Of course, everything is just something boring. The chances of us espying extraterrestrials in our atmosphere by chance are essentially nil. People looking for secret photos and buried evidence will absolutely positively never find it. People inside the DoD are just as crazy and irrational as the general public if not moreso. If a flying saucer lands in your front yard and little green men come out and say "take me to your leader" it's still infinitesimally likely that it's actually aliens. Meeting aliens will be nothing like any movie or book ever written (except maybe Contact).