If they are a secret program hypersonic vehicles which have been lost to the sea in Warning Areas along the coast where USAF/Navy/Marine pilots go to play. The Copilot on my crew lost his door panel on the T-38 he was flying at 700 mph in the Warning Area in along the coast in Northern California.
The military/NASA/et al do not always deconflict (or schedule properly) with all agencies authorized ... Read even more
