https://warisboring.com/sorry-believers-many-ufos-are-just-military-aircraft/

From the article:

The abundance of secret prototypes plying American skies gives plenty of cover to government investigators and skeptical outsiders whose impulse is to dismiss possible evidence of alien life. “That said, there are those in government—including, clearly, some of the intelligence officials who worked in the AATIP—who are prepared to think the unthinkable, and say that some of these things might be extraterrestrial,” Pope said.

Nick, Nick, Nick: These are NOT prototypes, and they are NOT “experimental aircraft.” They are clearly operational platforms that have existed for some time.