My guess is no, for maximal compartmentalization. They have a treasure trove of exploits and they grab one off the shelf and might need to burn it after they us

My guess is no, for maximal compartmentalization. They have a treasure trove of exploits and they grab one off the shelf and might need to burn it after they use it. I bet the people finding vulnerabilities have no clue how they end up getting used. Stuxnet probably got the top shelf attack vectors, and they were burned.