He said he reported to Congress on the existence of a decades-long “publicly unknown Cold War for recovered and exploited physical material – a competition with near-peer adversaries over the years to identify UAP crashes/landings and retrieve the material for exploitation/reverse engineering to garner asymmetric national defense advantages.”

Regardless of whether or not anything comes from this disclosure, that would make an awesome book or movie. You don't even need to have any aliens present, just ancient craft dig sites and whatnot.