Aliens are real. They arrive illegally by the millions across the southern border. The original ones in Roswell were Nazis under Operation Paperclip. We smuggled them out because they were literally the world's best scientists, etc, to keep them out of the hands of the Soviets. While that seems questionable, we have to remember what the Red Army did to Germany. I won't get graphic here, but let's say, there is no pure German DNA left anywhere within the former Iron Curtain. Stalin didn't just let his soldiers off the leash, he actively encouraged them to take their revenge. Millions starved the following years because no one farmed. Suffering in Europe was unbelievable following the war, despite that fairy tale we're fed about the Marshal Plan. Both sides took their revenge against Germany and today, both their ethnic heritage and their spirit has been deeply damaged. So, yeah, we saved a few very valuable people from that fate and brought them to the US.

The space alien thing is a lie that the US government created to distract people from what was actually going on. They knew that if people at that time knew what was going on, there'd be a revolt. The wartime propaganda was still very fresh in people's minds.

And that is a debunking of an actual conspiracy.