I remember about five years ago there was a similar video purporting to show UFOs flying over Haiti. Clear video, sound of bystanders talking in the background that made it sound like it was being recorded live, etc. After everyone had been freaking out about it for a few weeks, claiming that it was the most definitive UFO video yet, the guy who made the video promised to provide a new "proof" video to the LA Times. When he did provide the video, it showed the same exact UFO as the Haiti video, but this time it was floating over a street in Paris. The camera pulled back slowly to reveal that the UFO was a miniature being flown by two old grandmas with a remote control, as they giggled. Turns out both videos were made with some of the newest computer animation technology available at the time, and it tricked virtually everyone. The conspiracy nuts at places like "Beyond Top Secret" were humiliated, and some of them still refused to believe it was faked, even after the creator admitted it was all part of demonstrating his computer animation skills to prepare for a movie project. Moral of the story is that these things are always fakes or misunderstandings about what we're seeing.
I saw something pretty strange fly over my house about a year ago. It freaked me out to the extent that I actually talked to one of the posters here with extensive military "top secret" experience to see what he thought about it. To this day, I can't really explain it. But do I think that it was an alien spacecraft? No, not really. Sure, I can't really rule it out, but it's far from the most likely explanation, and as a rational person, I can't jump to the most unlikely explanation when far more reasonable explanations could be found. To me, the idea that aliens are visiting our planet, trying to do it secretly apparently, but at the same time using crafts that are lit up like a Christmas tree, is just absurd. I can't accept it. Maybe there is other life out there. I actually kind of doubt it, but it's possible. But if they ever do visit Earth, I don't think it will be in a craft that just so happens to look exactly like what hollywood has devised for alien crafts, lit up bright so everyone can see it, while not telling anyone of their presence. Rather, I think they would make themselves known if they are peaceful. And if they aren't peaceful, I doubt their lack of peace will present itself as midnight cow mutilations and abductions of guys named Cleatus so they can "probe" them. It would more likely resemble complete annihilation of us in the time it would take us to blink. All of this conspiracy nonsense is just fantasy, dreamed up in the minds of hollywood storytellers, and then co-opted by the conspiracy theorists.