Why haven't there been more photos/videos of UFO's???

Since the advent of 'picture-phones' new handier-to-use video equipment --- WHY HAS THERE NOT BEEN MORE PHOTOS/VIDEOS OF UFO's??? Have the UFO's and their occupants suddenly become 'camera shy'??? WHERE ARE ALL THOSE INCREDIBLE PHOTOS - SIGHTINGS OF EXTRA-TERRESTIALS??? OR WAS IT ALL JUST A GREAT HOAX AS GREAT AS AL'fat-fuck'GORE'S 'GLOBAL WARMING' SCAM??? PROVE IT WASN'T - POST THOSE PHOTOS/VIDEOS!!!