by definition a UFO can be anything in the sky you cannot identify . it doesnt HAVE to mean an alien spacecraft .

with the US (and other) military never letting anyone know what kind of new technologies they are working on , it is possible for a farmer in texas to see something in the sky he never saw before .

*shrug* also , how much time have you non-believers spent looking at the night sky ? if you live in a city area where you get the horizon 'haze' you wont see much for lights . if you live in the boonies like me , you'll see all kinds of em . many many many are airplanes , but once in awhile you'll see one that moves erratically .

different strokes for different folks . its like ghosts or religion , some believe - some dont .