If they want us to know they are here, it would be evident to everyone because they would make it obvious. They wouldn't just approach a few hicks in Kansas.
Seriously, a species capable of travel from so many lightyears away to our planet would have NO trouble making sure everyone in the world knows about their presence. It wouldn't take people like you to show us.
This is why I find your position so ridiculous. "Hey guys, these beings that are 100000x smarter than us what to reveal themselves to us but they're having trouble. But if you just look at these weirdly taken photos and read this obscure reports, it would be so clear to you!"
You're arguing the gov't is preventing the UFO existence from being noticed and utilizing their intelligence. The same gov't that half its officials can't seem to get away with keeping their penis in their pants without everyone finding out on twitter.