Unidentified Aerial Phenomena (hearing transcript, Subcommittee on Counterterrorism, Counterintelligence, and Counterproliferation, 17 May 2022)

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aware of any foreign adversary capable of moving objects without any discernible means
of propulsion?
Mr. Bray. I think I would -- without discernible means of propulsion, I would say
that we are not aware of any adversary that can move an object without discernible
means of propulsion.
The question then becomes, in many of these cases where we don't have a
discernible means of propulsion in the data that we have, in some cases there is likely
sensor artifacts that may be hiding some of that. There is certainly some degree of
something that looks like signature management that we have seen from some of these
UAP.
But I would caution -- I would simply say that there are a number of events in
which we do not have an explanation in which -- and there are a small handful in which
there are flight characteristics, there are signature management that we can't explain
with the data that we have.
We will continue -- those are obviously the ones that are of most interest to us.
Earlier, when we asked about how you avoid technological surprise, the biggest way you
avoid technological surprise is by collecting this type of data and by importantly
calibrating the assumptions that you go into with how you do that analysis.
I will tell you, within the UAP Task Force, we have one basic assumption and that
is that, generally speaking, generally speaking, our sensors operate as designed. And we
make that assumption because many times these are multisensor collections. We make
no assumptions about the origin of this or that there may or may not be some sort of
technology that we don't understand. That is, I think, the key to avoiding technological
surprises, by calibrating those assumptions.
Mr. Schiff. And, finally, with respect to the second two videos, showing the small