IMO the only reason those companies are not literal divisions of the government is plausible deniability so they can sell things to other countries. I would gue

IMO the only reason those companies are not literal divisions of the government is plausible deniability so they can sell things to other countries. I would guess 95% of their revenue is from the government, and they have very strict government regulations. If we just nationalized Lockheed and friends, I would be we could get improved efficiency.