This is leaning towards Politics so I am moving it to that section.
My two cents, the Government is probably going to gain shares in the banks as a form of collateral for the loans/hand outs they are giving. This seems appropriate. They will not be assuming a majority stake and there are millions of stock holders that effectively prevent them assuming full control of anything.
I think the current administration is satisfied with lining its pockets through the usual methods rather then assume control of real entities as this entails real work to manage.
Real work is not high on their list of favorite things to do, so I think we are safe.