I know you said "suppliers" and I was clearly talking about trusted "foundry" since GF doesn't supply anything. I am sure Coca-Cola is a trusted supplier to the DoD, so what? The trusted foundry portion of the old IBM has a lot of business that cannot be done anywhere else
Do you even understand what the trusted foundry program is? It is not just the DoD using them, it is all the Defence contractors. It has nothing do with buying OTS parts from DigiKey or Newegg. It's about custom designed chips like processors, PMUs, etc. I don't think L-3, Lockheed, GD are going to be replacing their custom 14, 32, 45nm ASICs in phase-array radar, missile tracking systems, submarine control systems through shopping on eBay. My point was (and it seems you actually agree with it to some extent) is that there are mission critical parts made in the GF Trusted foundry program THAT CANNOT BE MADE ANYWHERE ELSE. So no foreign entity is going to be allowed to own those fabs (though it seems several Chinese entities have wanted to get GF for a song). Your comment about the government building their own fab to replace it is just plain stupid and you know it-you are talking about a minimum of 5 years and billions in investment when there are 2 factories that you are using already just sitting there. I think the likely scenario is that the government will step in and compensate (ie, subsidize) one of the existing trusted foundry partners (On, TSI, Northrop) to take over Fab10 (and possibly Fab9) to ensure the uninterrupted flow of mission critical parts.
As far as the government owning secret fabs, I am sure the "alphabet" agencies have their own fab (or fabs) but just nothing below 180 or 90nm and it would not be available to the private Defence contractors. Though I have no direct knowledge of such things, I've just seen things on the internets like wikipedia (Ft Meade and the old Sony fab in San Antonio-see what I mean by repurposing).