I do agree that if there was any wreckage most people would not be in the know about it, most likely. Heavy lockdown.
I will say, plain and simple, I TOTALLY believe aliens could exist. In fact I believe they HAVE to exist due to the nature of reality. I also believe they're more likely interdimensional rather than physically distant. (So, like, kind of, you know, right next to you/inside you but on a frequency you're not tuned to)
BUT
THOSE WERE FUCKING BUGS FLYING IN FRONT OF THE CAMERA.
*ahem*
Just my 2 cents. UFO's may very well exist. Those were not them.