from first-hand U.S. military personnel about highly advanced unknown craft
if the U.S. disclosed information on this case, then we in Brazil could do the same.
I took an oath as an Air Force officer swearing allegiance to the principles and the framework of the U.S. Constitution.
adversary views on U.S. legacy program reverse engineering efforts, and U.S. held audiovisual information related to crash retrieval matters such as the recovered vehicles and the associated biological material.
But there are several that the U.S. government is aware of.