I mean whatever the payload is, it isn't something the NRO gives much of a shit about.
That is an interesting idea. Give SpaceX an old satellite sitting in the hangar and see if they can handle the launch. IF they fuck up, all you do is release data on a 10+ year old bird and can use that leak as a red herring to hide what you can actually do. And if they launch and it all works? you get an asset in space and save a ton of money on warehousing the expensive hardware.