I mean, this is not a big deal. It really isn't.
If ETs are real, they definitely knew it for last 40/50 years as they have the physical evidence and remainings of UAP in their custody.
Also, i definitely think they had long enough time and resources to comprehensively evaluate the threat level posed by ETs.
If they really posed any serious threat you would have seen a completely different security environment across the globe. (Actually, it would have been much better for humanity, instead of fighting against each other everybody would've been cooperating)
If ETs are real, they definitely knew it for last 40/50 years as they have the physical evidence and remainings of UAP in their custody.
Also, i definitely think they had long enough time and resources to comprehensively evaluate the threat level posed by ETs.
If they really posed any serious threat you would have seen a completely different security environment across the globe. (Actually, it would have been much better for humanity, instead of fighting against each other everybody would've been cooperating)