On Jan. 23, Russian military officials held a press conference showing off what they said was a cruise missile at the center of a years-long arms control controversy between Washington and Moscow.

Except the presentation was essentially a hoax, according to a classified briefing prepared by U.S. intelligence. Neither the missile, nor its launch vehicle, nor the accompanying schematics were what Russia claimed them to be…

Almost nothing Russia showed off to support its claims at that press conference had anything to do with the missile the U.S. is most interested in, according to an assessment briefing put together by the Central Intelligence Agency and the National Geospatial Intelligence Agency.