The congressional UFO report is expected soon
usatoday.com
usatoday.com
Really, the only interesting question here is whose military technology it probably is and what the objects in question were actually doing, rather than just appearing to be doing from one perspective. I would love if it were aliens but if they wanted to announce themselves there are so many more obvious ways of doing so.
For example, I can't really communicate with the various animals in my vicinity, from dogs to bees, but I can certainly tell whether or not they've noticed my presence. I feel pretty confident that alien visitors would be aware of the existence of human life and its proarteacts (cities, infrastructure, vehicles) even if we were not considered very interesting or sufficiently advanced to communicate with.
When they see us puttering around, they may just chuckle, thinking "the filter's definitely gonna get these chumps!"
No enemy worth worrying about is actually going to believe we've suddenly leapt thousands of years (or impossibly) ahead in technological development and created anti-gravity drones, much less then leaked it to the press.
1. Report says it's aliens. They're right :D
2. Report says it's not. This is a continuation of the government's conspiracy to hide that aliens are visiting us.