If someone believes the US government is in possession of a craft from another planet/world and has "non-human biologics" they must believe either/and;
- Every scientist that has ever lived on the planet has incorrectly determined another planet in our solar system cannot support life and that all probes and satellites ever launch have missed every sign of life during it's travels
OR
- There are beings out there that are capable of living much, much longer than humans...they have developed the technology that allows them to safely travel faster than the speed of light...despite their advanced technology, they lack the ability and skill, after traversing galaxies, to safely navigate the gravity and terrain of earth.