Well, after the ascension of the Communists they have had enough years to employ Dagny Taggart's "San Sebastian Line" tactic of hollowing out the plant and leaving it appearing to be functional but with nothing of value inside left to be looted.
That they didn't indicates that they were receiving assurances from the Obama Administration that such a seizure would never happen.
If you can’t depreciate your equipment over 70 years, you need new accountants.