Assertion: ufo's existence | /r/MadeOf | public
Facets:
value: in december
type: TEMPORAL
Source sentences:
text: When the existence of the AATIP was made public in December 2017, the most newsworthy aspect of it was a report that the U.S. government possessed alloys and compounds purportedly attained from UFOs that were of unidentifiable nature, but many scientists remained skeptical about this claim.